296. Neuroscience Meets Psychology | Dr. Andrew Huberman
Summary
Dr. Andrew D. Huberman is a neuroscientist and tenured associate professor in the Department of Neurobiology at the Stanford University School of Medicine. His work focuses on the visual system, elucidating the nature of neural mechanisms controlling light-mediated activation of the circadian and autonomic arousal centers in the brain, and mediating conscious vision or sight. He and his lab have made contributions to the brain development, brain plasticity, and neural regeneration and repair fields. His lab employs a large range of state-of-the-art investigative tools, including virtual reality, gene therapy, anatomy, and imaging and behavioral analysis. In January 2021, Dr Huberman launched the Huberman Lab Podcast, a detailed scientific podcast focusing on neuroscience and other scientific topics, attracting 1.5 million subscribers. In this episode, he discusses the neuroscience of anxiety and exploration, and his research on the neural basis of anxiety, including his work on the autonomic nervous system and how it relates to exploration and exploration. He also discusses the role of the gut microbiome in the development of the human nervous system, and what it means for our understanding of the mind and behavior, and the role it plays in our everyday lives. Let this be the first step towards the brighter future you deserve. Dr. Peterson is a pioneer in the field of mental health, and has dedicated his life to educating others about mental health and providing support to those who are struggling with anxiety, depression, and other conditions that affect us all. With decades of experience helping patients, Dr. Jordan B. Peterson offers a unique understanding of why you might be feeling this way, and offers a roadmap towards a better future you need to feel better. He provides a roadmap toward healing. If you are struggling, please know you are not alone, and there's hope and there is a path to feeling better. Go to Daily Wire Plus now and start watching Dr. Petra Peterson on Depression and Anxiety: A Path to Feeling Better. Today's guest: Dr. Dr. Amy Huberman, PhD, on the first episode of the new series on Depression & Anxiety: The Journey to a Brighter Future you Deserve a Bright Future You Deserve. Subscribe to Dailywire Plus on the Daily Wire PLUS on YouTube and subscribe to DailyWire Plus on Apple Podcasts! to get immediate access to all the newest episodes of Dailywireplus and other podcast recommendations, and stay up to date with the latest updates on all things Mental Health Matters.
Transcript
00:00:00.960
Hey everyone, real quick before you skip, I want to talk to you about something serious and important.
00:00:06.480
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00:00:12.740
We know how isolating and overwhelming these conditions can be, and we wanted to take a moment to reach out to those listening who may be struggling.
00:00:20.100
With decades of experience helping patients, Dr. Peterson offers a unique understanding of why you might be feeling this way in his new series.
00:00:27.420
He provides a roadmap towards healing, showing that while the journey isn't easy, it's absolutely possible to find your way forward.
00:00:35.360
If you're suffering, please know you are not alone. There's hope, and there's a path to feeling better.
00:00:41.780
Go to Daily Wire Plus now and start watching Dr. Jordan B. Peterson on depression and anxiety.
00:00:47.460
Let this be the first step towards the brighter future you deserve.
00:00:57.420
Hello everyone. I'm pleased today to have with me Dr. Andrew D. Huberman.
00:01:14.040
He's a neuroscientist and tenured associate professor in the Department of Neurobiology at the Stanford University School of Medicine.
00:01:21.600
Dr. Huberman and his lab have made contributions to the brain development, brain plasticity, and neural regeneration and repair fields.
00:01:30.360
His work and his lab's work focuses on the visual system, elucidating the nature of neural mechanisms controlling light-mediated activation of the circadian and autonomic arousal centers in the brain,
00:01:42.920
and mediating conscious vision, and mediating conscious vision or sight.
00:01:46.940
His lab investigates how the brain works, how it changes through experience, it's a field known as plasticity, and how it repairs itself.
00:01:55.560
He and his colleagues have worked to discover strategies for halting and reversing vision loss in blinding diseases,
00:02:02.780
and understanding how visual perceptions and autonomic arousal states are integrated to impact behavioral responses.
00:02:10.780
His lab employs a large range of state-of-the-art investigative tools, virtual reality, gene therapy, anatomy, electrophysiology, and imaging and behavioral analysis.
00:02:22.200
In January 2021, Dr. Huberman launched the Huberman Lab podcast concentrating on neuroscience and other scientific topics.
00:02:30.320
It's done phenomenally well for a detailed scientific podcast, attracting 1.5 million subscribers.
00:02:38.500
It's very good to see you today, Dr. Huberman, and thank you for agreeing to talk with me.
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Your first book, 12 Rules for Life, sits prominently on our bookshelf in our living room,
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and we've all read it and learned a tremendous amount from you over the years,
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and certainly feel a kinship because of the shared relationship between university professorship and public education as well.
00:03:03.200
Right, right, right. Yeah, well, we've got lots in common.
00:03:05.640
I'm particularly interested in the neurological work that you've done on both anxiety and exploration,
00:03:11.440
although there's plenty of topics to talk about today and plenty of overlapping interests.
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But it's been a while since I've reviewed the neuroscience literature pertaining to both anxiety and exploration,
00:03:22.980
and so maybe we could start by you laying out what you've discovered and how you're thinking about what you think anxiety signifies,
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how it's related to exploratory behavior, which I think you described as something approximating courageous approach,
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although you were talking about mice in that particular paper, and what you're thinking about with regards to the neural basis of these different behavioral responses, behavioral and emotional responses.
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And I should mention that these days my laboratory mainly focuses on humans.
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We still do some mouse work, but in partnership with people in psychiatry, we're doing essentially equivalent experiments in humans,
00:04:04.780
You know, many people perhaps, but not everyone, have heard of the autonomic nervous system, which simply means automatic.
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It's a bit of a misnomer because without going too much into the history of that,
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if you look back to the origins of medicine in the time of Galen and so forth,
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when they were first, you know, dissecting cadavers and whatnot,
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there was this idea of a nervous system or a portion of the nervous system eventually came to be that could control so-called vegetative functions,
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meaning the rate of digestion and the really what neuroscientists typically think of as boring stuff.
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It's the stuff that keeps you from urinating while you're asleep, unless you're a very young child, right?
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And it's the stuff that keeps your digestion going as you command your attention to other things.
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It's all the things that are too complex for us to think through.
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And they are, as you point out, immensely complex.
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And, you know, nowadays with all this interest in the gut microbiome and things of that sort,
00:05:03.080
I mean, these are tremendously complicated operations that are happening generally below our conscious awareness
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You know, we were all familiar with the idea that when we are emotionally distraught,
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that our digestion can be different or et cetera.
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But typically we can't control, for instance, in a conscious way, the rate of our digestion
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or the speed of our heartbeat in any kind of direct way.
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We can have a particular pattern of thought to control those.
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But in general, those functions were thought to be vegetative and outside of our conscious control.
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And the name autonomic nervous system sort of swallowed and overtook the vegetative part.
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So it includes that, but also three main aspects of body to brain signaling.
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And those three aspects are heart rate, could be quickening or slowing of heart rate.
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We are and we can be very aware of that, some of us more than others.
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Gut and especially the chemical composition and the extent to which our gut is empty or full.
00:06:06.400
So heart, stomach, and then rate of breathing and sort of depth of breathing,
00:06:13.580
And I think the three main ways to think about the way that the brain and body communicate
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is that it's either going to be mechanical or chemical.
00:06:24.300
Your stomach can feel acidic or it can feel nice and warm and fuzzy, whatever that is in a chemical sense.
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Your heart rate can feel like it's going at a rate that's appropriate for your circumstances.
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You know, if you're running, it could be quick.
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And if you're sitting in a chair quietly at the doctor's office waiting to be called back there
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and all of a sudden your heart starts racing, then you would think,
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well, that's appropriate for that situation, but it's not uncomfortable, right?
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It's out of sync with what you are doing, which is sitting.
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So there's mechanical information and then there's chemical information.
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And with respect to your lungs, you know, you can feel like you're out of air or you have plenty of air.
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You can feel like your breathing is labored or it's easy or in the chemical sense that the air that you're breathing,
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your lungs are burning or it feels easy to breathe.
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So basically there's chemical and mechanical signaling from the body to the brain and the brain interprets all of that.
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And we put all of that under the umbrella of the so-called autonomic nervous system.
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And the autonomic nervous system can really be best thought of along a continuum.
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And here I'll avoid complicated nomenclature, but I'll throw it out there for the aficionados.
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Some people have probably heard of the parasympathetic and the sympathetic.
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Again, what we can really think about the autonomic nervous system as is a continuum
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or more like a seesaw of at one end is alertness and at the other end is calmness, right?
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That is translated to the so-called sympathetic and parasympathetic nervous system.
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But I'll call it the alertness and calmness system just for sake of simplicity.
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So it's sort of like a seesaw and it has different neural circuits.
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And basically whether or not you feel very alert or panicked or alert but calm or a little bit of anxiety,
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that's going to depend on the balance between this alertness system and the calmness system.
00:08:03.320
If you're having a full-blown panic attack, then the alertness system is, you know,
00:08:09.380
If you have, if you're deeply asleep, well, then the calmness system is really tilted down.
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This is all kind of obvious and dates back, you know, 100 years or so,
00:08:20.060
which isn't that long in the history of science, but we've known this sort of thing for a while.
00:08:24.660
What's interesting and I think more relevant nowadays is to think about one's own interpretation of those
00:08:30.280
signals and how that relates to anxiety and, as you pointed out, exploration,
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and then to think about where the nodes of control are.
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In this seesaw model that I'm putting forward, the seesaw has to include what I would call a hinge,
00:08:44.780
a location in the middle in which you can voluntarily adjust the seesaw to either be
00:08:51.480
more tilted toward alert or more tilted toward a sleep.
00:08:55.460
And for many people, they find that their overall level of autonomic arousal is either inappropriate
00:09:08.720
They feel more jittery, more as if movement would be the default and worry would be the default and
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anticipation is the default than is appropriate for their circumstances.
00:09:19.560
Waking up in the morning and feeling stressed, for instance, immediately without any immediate
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For other people, they feel more exhausted than they would like.
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They're having a hard time leaning into the pressures of daily life.
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Both of those, even though they have sort of polarized phenotypes, they look very different.
00:09:42.760
Both originate within the autonomic nervous system.
00:09:45.040
And we can reliably say from work done in animals and humans that that is not the consequence
00:09:49.940
of the alertness system or the calmness system being disrupted, but rather that that hinge in the
00:10:00.360
And this is based on work done by colleagues of mine at Stanford, in particular, a guy named
00:10:04.220
David Spiegel, who's our associate chair of psychiatry.
00:10:06.540
He's done a lot of work and it's actually, his father did a lot of work in the application
00:10:10.520
of clinical hypnosis, not stage hypnosis, but clinical hypnosis for the treatment of various
00:10:15.500
But his work and some work in our laboratory now has shown that there's an area of the
00:10:24.340
And in particular, the left dorsolateral prefrontal cortex, if you really want to get down in the
00:10:29.080
weeds about it, that has direct communication with two brain areas that are absolutely critical
00:10:34.960
for this issue of whether or not you feel right for your circumstances, whether or not
00:10:39.940
you translate that into a curiosity and exploration, or whether or not you translate it into this
00:10:46.920
And those two areas are called the anterior cingulate cortex.
00:10:50.840
Again, I apologize for all the names, but the anterior cingulate cortex and the insula.
00:10:54.680
And I think if I were to make a prediction about what the buzzword is going to be in popular
00:10:59.140
neuroscience in the next five years, it's not the amygdala.
00:11:04.540
The insula has a couple of different regions, but one of its primary regions, the front end,
00:11:09.120
the anterior insula is responsible for interpreting all those bodily signals.
00:11:14.760
It essentially is a funnel for all those signals about breath rate, heart rate, conditions
00:11:20.500
of the gut, whether or not your body feels ready to move or exhausted, et cetera.
00:11:27.660
And then also coming into the insula is information from classical areas like the amygdala, which
00:11:32.600
are involved in threat detection and fear, and also emotion and memory.
00:11:37.540
So the insula is really this incredible hub of information about somatic signals, about bodily
00:11:43.520
And then the prefrontal cortex, the dorsal lateral prefrontal cortex in particular, is
00:11:47.980
in communication with the insula and literally makes a difference.
00:11:53.360
So does that mean that the body, in some sense, is reporting to conscious awareness?
00:11:59.220
Now, it reports unconsciously in all sorts of ways, too.
00:12:01.720
So it might report to the hypothalamus, which is a very low-level brain control area, by the
00:12:07.800
It might report to the hypothalamus primarily unconsciously.
00:12:10.900
But do you think it's the insula that's reporting on the nature of bodily states to the prefrontal
00:12:17.780
cortex in a manner that allows us to be consciously aware of our body states?
00:12:26.060
The insula sits as a different sort of station in that it's reporting to the conscious areas
00:12:35.220
So we can take our own physiological state into account then when we're envisioning plants,
00:12:40.580
because part of what the dorsolateral prefrontal cortex does is allow us to envision different
00:12:47.840
And you're not going to make a plan to run two or three blocks to get to the corner store
00:12:52.660
if you're so exhausted you can't get out of bed.
00:12:54.500
And you need a reporting mechanism that tells you what physical state you're in so that
00:13:00.140
You think the insula, at least in part, is responsible for formulating those representations
00:13:07.940
In fact, the animal data and the human data, both lesion data and reversible inactivation
00:13:17.620
And as you mentioned, the prefrontal cortex, you know, it gets sort of thrown out there for
00:13:22.660
I think, you know, nowadays people have probably heard of the prefrontal cortex and people hear
00:13:25.780
about executive function, which of course is true.
00:13:28.280
But if we were to really dial back and say, what is the prefrontal cortex in the position
00:13:39.420
I'm sure you are probably more familiar than I am with the classic Stroop task.
00:13:43.520
You know, you give somebody a bunch of cards with different words on them, and those words
00:13:50.340
And you tell the person, okay, just read the words to me.
00:13:54.500
Ignore the color that they're written in, just read them.
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And so they're saying they're cat, dog, shelf, book, professor, student, et cetera.
00:14:01.220
Then you quickly change the rules and you say, you know what?
00:14:05.100
Just tell me the color that the words are written in, but ignore what the words say.
00:14:09.920
And people will do that, but there's a portion of time in which they slow down a bit.
00:14:15.200
It's actually hard because you've done a rule switch.
00:14:17.660
Much of life, as you know, and again, this is more your domain than mine, is about applying
00:14:24.660
Now, what we know is that the insula and the prefrontal cortex are both intimately involved
00:14:30.760
in this conversation that establishes which rules are appropriate for a given situation.
00:14:36.840
So for instance, if somebody were to say something that quote unquote triggers me, okay, I'll use
00:14:45.960
Maybe somebody will tweet something and I'll think, oh, you know, and I immediately want
00:14:50.360
to respond in a way that I know I can kind of like flip them on their back immediately.
00:14:55.400
But then I think, ah, you know, maybe I want to refrain from that for a number of any number
00:15:01.180
Well, then I have, I'm starting to apply different rules.
00:15:04.440
I'm starting to think about the context that's outside of the autonomic response because in a
00:15:09.260
strict, very animalistic way, in other words, in the absence of an insula and a prefrontal
00:15:13.860
cortex conversation, really the only thing an animal or human needs to do is just respond
00:15:20.320
to their arousal in, you know, it's either, uh, you can either retreat, you can stay put
00:15:31.780
So, so, so, so let me ask you about the role of the prefrontal cortex in what you described
00:15:37.320
as rule of switching because I would, I would like to know what you think about whether or
00:15:43.120
not the prefrontal cortex is actually, let's say, switching rules or if it, if what it's
00:15:48.920
doing is switching context, sensitive behavioral patterns that when we talk about, we describe
00:15:56.560
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It is the critical question that you're asking.
00:17:39.240
The prefrontal cortex, in particular the left dorsolateral prefrontal cortex, is in an incredibly
00:17:45.000
unique position to not only establish different rules depending on context, and the way it
00:17:53.260
So the hippocampus has access to prefrontal cortex and vice versa.
00:17:58.420
So it can pull memory thinking, oh, you know, the last time I responded like that didn't
00:18:02.380
get me the result I wanted, or the last time I responded in this other way, I got the result
00:18:10.000
The other thing that the left dorsolateral prefrontal cortex is exquisitely positioned to
00:18:14.780
do, and this is beautiful work of a colleague of mine by the name of Nolan Williams, also
00:18:19.340
in psychiatry, is because of its connections to some structures that then feed into the
00:18:24.380
vagus nerve, it actually can slow the heart rate down.
00:18:28.780
So in other words, let's say someone says something and your immediate impulse is to
00:18:32.340
fight or to respond in a kind of knee-jerk way.
00:18:36.360
If you halt, right, I guess what the meditators and the mindfulness folks was called the gap,
00:18:41.400
or if you can access some memory and think, ah, and you might be thinking, you know, actually
00:18:45.540
there's a much better way to place the dart if I just kind of lean back a little bit,
00:18:49.060
or it could be, you know, silence might be the best response, right?
00:18:52.880
Or it could be that you're going to carefully access some data from your hippocampus to respond
00:19:00.300
For instance, here I'm talking about confrontation, but it could be any situation.
00:19:03.360
The left dorsolateral prefrontal cortex does two things.
00:19:07.100
As it acquires a new rule set or starts to access information about a new or possible
00:19:13.060
rule set, it also sends a parallel signal to slow the heart down through the vagus nerve.
00:19:19.240
And that is, I think, one of the more important and fascinating discoveries in the last five
00:19:26.760
But it's very clear that when we start accessing alternate rule sets, there's a signal that
00:19:40.840
And again, you have the clinical background, not I.
00:19:44.020
But I'll confess, I've been in therapy enough to know that occasionally, you know, one feels
00:19:50.100
as if you're accessing some piece of information as the patient side.
00:19:55.060
You know, accessing some what feels like important piece of information, you're pulling on a thread
00:20:00.620
But then the therapist will say something and it literally gives you that alternate view.
00:20:05.860
And this notion of looking at things through a different perspective, we often think about
00:20:09.780
that as a switch in our cognitive frame, in our thinking.
00:20:13.880
But also, we now know there's this parallel signal that's sent to the body in which in
00:20:18.420
order to access these alternate rule sets, new ways of looking at things, there's a calming
00:20:25.380
And I find this conversation fascinating because normally we just think about anxiety and exploration
00:20:31.180
and rule setting and rule responses or responses to rules, et cetera, as a kind of the body
00:20:36.960
sends signals and the brain does all this, what neuroscientists have always talked about
00:20:42.260
Just sort of suppress the hypothalamus, control the limbic system.
00:20:45.860
And that's true to some extent, but there's also, it's clear there are signals being sent
00:20:56.640
Like conducting, like an orchestra, orchestrator conducts.
00:21:00.240
And there's a very interesting phenomenon that takes place in people that have chronic anxiety
00:21:04.800
or for people who essentially stop accessing alternate rules and responses to these signals.
00:21:12.240
And this is, I think, what is showing up in chronic anxiety, certainly in certain forms
00:21:16.660
of depression and when people enter states of rage and dysregulation, is that normally we
00:21:22.660
know based on neuroimaging that the prefrontal cortex is essentially leading the response of
00:21:32.400
So information is coming up from the body into the insula and then being fed to the prefrontal
00:21:37.360
But then the prefrontal cortex is actually in a position to lead responses.
00:21:41.000
And it essentially is acting like the coach of a team.
00:21:44.260
And the team is all these structures like the ACC and the anterior cingulate cortex and
00:21:50.040
What happens in individuals who have chronic anxiety or damage to the prefrontal cortex or
00:21:55.620
dysregulation of these circuitries is that that order actually reverses.
00:22:01.660
The insula and ACC start leading and directing the response of the prefrontal cortex.
00:22:06.780
And I think, you know, we see this in, I'm sure you've seen this clinically in individuals.
00:22:11.400
And while this isn't necessarily a discussion about society at large, I mean, we see this
00:22:16.120
in dysregulated arguments and dysregulated combat where people is essentially losing
00:22:23.280
themselves and they default to one, what appears to be very primitive rule set.
00:22:28.080
And it may or may not be the appropriate one, but you and I, of course, have the good fortune
00:22:32.820
of knowing a number of people who've worked in special operations and things like that.
00:22:36.300
And you talk to any of those individuals and they know from experience and from training
00:22:40.920
that their ability to access multiple rule sets and options in the moments of extreme
00:22:48.520
autonomic arousal is actually where their power lies, right?
00:22:52.100
It's the, or a, or a combat fighter, or let's just take, or in debate, right?
00:22:56.580
Something that you're far more versed in than I am, right?
00:22:59.000
Although I guess every academic has to deal with a bit of that coming up, the thesis defense,
00:23:04.160
In a really good debate, you can't allow the autonomic response to overtake you or you lose
00:23:11.580
access to an enormous database that resides in your, one's hippocampus.
00:23:16.240
And you essentially, one then defaults to the bodily state, right?
00:23:20.640
And this is what we see when we see people become dysregulated in rage, et cetera.
00:23:24.540
So if we were to zoom out and then ask, you know, where is the line between exploration
00:23:30.360
I think that we can check off a few boxes for sure.
00:23:33.260
First of all, that autonomic arousal, this, this tendency to be more alert or more in action
00:23:43.920
I mean, the moment adrenaline is released from the adrenals and, and as you know, there's a
00:23:49.020
parallel signal in the brain, you know, you get adrenaline released from the adrenals.
00:23:52.260
If you get in a cold shower or somebody says something triggering, or you are afraid of
00:23:56.560
heights or something, but the brain has its own kind of adrenaline system, which is this
00:24:00.740
structure in the back of the brain called locus coeruleus.
00:24:03.240
And it basically has a, it essentially sprinklers the entire brain with noradrenaline and adrenaline.
00:24:13.640
If you were to, if I were to put a little, if I were to label the connections of the
00:24:17.980
locus coeruleus, it's basically connected to everything.
00:24:20.080
It just kind of sprinkles a caffeine-like substance on the entire brain, wakes you up.
00:24:32.160
If you orient, does the locus coeruleus wake up the brain?
00:24:35.660
So it's a key component of the so-called reticular activating system.
00:24:41.100
And incidentally, I should mention this because I was going to come to this later, but I think
00:24:48.340
If somebody has a lesion in their dorsolateral prefrontal cortex, or if you transiently inactivate
00:24:54.080
it with a technology, a non-invasive technology like transcranial magnetic stimulation, they
00:24:58.500
can now just put a magnet on outside the skull and quiet that area of the brain transiently.
00:25:02.880
In animals or humans, what you find is that that person or human becomes incredibly accurate
00:25:11.300
So for instance, if I were to give you a shooter game where you're supposed to shoot targets
00:25:15.800
and you're shooting targets, you'll have some hits and some misses like anybody.
00:25:21.280
Um, if I inactivate your dorsolateral prefrontal cortex, your accuracy goes through the roof.
00:25:29.740
But the one thing you can't do is decide whether or not you're shooting an enemy or a, uh, or
00:25:39.560
You just become very good at execution of the motor behavior.
00:25:43.160
Similarly in an animal or person without a dorsolateral prefrontal cortex.
00:25:48.300
Between, between specificity and, and flexibility.
00:25:52.400
And so, and so we see this theme over and over again, where as a purely, you know, sensory
00:25:58.300
motor response machine, the prefrontal cortex isn't even necessary.
00:26:02.480
In fact, if you get rid of it entirely, people become like machines.
00:26:06.020
If I click over here, somebody has no prefrontal cortex.
00:26:08.280
Basically everything becomes a stimulus, a puppy.
00:26:12.100
You know, I used to have a bulldog when he was a puppy, he had to worry about leaving
00:26:15.820
cords out and everything was, it went into his mouth by time he was, you know, a year
00:26:23.260
Like you could put a toy in front of him and he wasn't into playing and just leave it alone.
00:26:29.020
Many adults become infant like in their responses, right?
00:26:38.360
Tell me if you agree with this statement or not, that anxiety makes children of us all.
00:26:42.100
I don't know if that's true or not, but it certainly has been my experience that when
00:26:46.700
feeling anxious, I don't struggle with chronic anxiety, but I certainly feel like, have felt
00:26:53.580
I mean, all these underlying emotions and motivational states, these primordial instincts
00:27:01.320
And so if we're unable to compute a complex and sophisticated pathway forward that takes
00:27:07.300
multiple variables into account simultaneously, we can't just do nothing.
00:27:11.960
We're going to default to a more primordial and direct state.
00:27:15.600
And then you might say the whole panoply of emotions and motivations lies there at the
00:27:22.980
If we're, what would you say, if we're paralyzed by inability to choose between multiple options.
00:27:29.060
And so we do, to the degree that we're simplified by an emotion, then we're reduced to something
00:27:35.760
If you watch two-year-olds, and two-year-olds are particularly interesting in this regard,
00:27:40.460
they basically just cycle through innate motivational states.
00:27:45.080
It makes them really interesting to be around, because when they're interested in something,
00:27:50.960
And then when they're angry, they're 100% angry.
00:27:56.300
And they can, and tired, they just instantly fall into a coma.
00:27:59.900
And they just cycle through these with no overarching centralized integration.
00:28:04.460
And it's partly because they likely don't really manifest any integrating prefrontal cortical
00:28:15.260
capacity until they hit about three, where they can start to engage in joint play states
00:28:22.300
And then they can exercise, then they can modulate their underlying emotions in accordance with
00:28:27.840
an abstract representation or goal, sometimes that's jointly shared.
00:28:33.280
It's also why the idea that identity is subjectively defined is absolutely preposterous.
00:28:37.800
It's like, it's subjectively defined for two-year-olds, but it's not subjectively defined
00:28:42.300
for anyone who's sophisticated enough to negotiate with someone else.
00:28:46.120
And so tell me about, tell me what you think about this.
00:28:49.160
My understanding of the prefrontal cortex is that over the course of evolutionary time,
00:28:54.500
it grew out of the frontal cortex and out of the motor cortex more specifically.
00:28:59.760
And so the best way to think about what the prefrontal cortex does in some sense is that
00:29:04.960
it generates potential abstract patterns of action.
00:29:09.520
It generates them in abstraction so that they can be assessed before they're implemented.
00:29:14.760
And so it's like it's generating potential future selves.
00:29:20.780
And I'm glad you stated it, not I, because you stated it far more clearly and succinctly
00:29:36.400
It's running plays and thinking about potential outcomes.
00:29:38.800
You know, I'm not a chess player, although, you know, Lex Friedman's podcast and Lex Friedman
00:29:43.920
are convincing me that perhaps I should learn because there's a lot of discussion about chess
00:29:48.220
And there's a lot of thinking, as I understand, about potential outcomes.
00:29:51.800
You know, how many moves can you anticipate if this, then that?
00:29:54.900
It's sort of if this, then that type of thinking.
00:29:57.720
And if you think about its connectivity, it's in a beautiful position based on its access to
00:30:05.120
It can take into account current state, bodily state.
00:30:08.880
It can access information, for instance, about do I have the energy?
00:30:11.580
Do I have the resources to undergo a particular pattern of response?
00:30:19.760
And then the dorsolateral prefrontal cortex, in this way of also being able to control the
00:30:25.100
body, of being able to calm the body, this is a very unique pathway because typically we
00:30:30.980
think of the heart rate as going up if we're excited or scared and heart rate going
00:30:36.140
But really, the default of the neural inputs to the heart and to the breathing systems,
00:30:43.740
And then the brain provides a suppressive or kind of a breaking on that entire system.
00:30:53.240
And the vagus nerve, which, of course, is a massive nerve pathway.
00:30:56.080
Again, it makes it sound like one little nerve, but it's this huge superhighway of connections
00:30:59.560
between brain and body is classified in medical school as a parasympathetic pathway, meaning
00:31:06.020
of the calming system, kind of generically speaking.
00:31:10.780
And so the prefrontal cortex, we can think of as, remember in the seesaw analogy, the
00:31:18.460
The prefrontal cortex is more or less like the screwdriver that tightens that hinge, essentially
00:31:23.920
makes sure that the seesaw stays at a level, at a tilt that's appropriate for whatever
00:31:34.460
So imagine, so to continue the evolutionary analog, so an animal that doesn't have a lot
00:31:41.560
of behavioral flexibility, generally its reproduction strategy is multiple copies of itself, maybe
00:31:48.220
And the reason for that is all the variability in the animal's behavior is genetically coded.
00:31:52.480
And so for it to adapt to the transforming horizon of the future, it has to produce multiple
00:32:01.020
With mosquitoes, for example, they produce thousands of eggs.
00:32:04.140
And if they all lived, we'd be knee-deep in mosquitoes in like 10 years.
00:32:07.300
But they almost all of them die because they're not matched to the transformation that's coming
00:32:13.280
But with human beings, what we seem to have done is evolved a mechanism for manufacturing
00:32:23.560
And so we can put forward optional selves in abstraction and then kill them off when
00:32:32.420
And so the famous quote, I think it was Alfred North Whitehead, was that the purpose of thought
00:32:42.880
And so then it seems to me too, you tell me what you think about this, is that the abstracted
00:32:51.200
artificial selves, avatars in some sense, that the prefrontal cortex generates, or that
00:32:58.420
it allows these underlying motivational and emotional systems to generate, because they
00:33:05.260
I think when we describe those, we're describing, we're telling stories.
00:33:10.260
When we describe one of these alternative modes of action, that's precisely, the verbal
00:33:18.000
And you make a very important point, which is that the prefrontal cortex is a rule-changing,
00:33:24.200
alternate self-accessing machine that can also calm the body.
00:33:29.440
And here I'm making up a just-so story, because as I always say, I wasn't consulted at the
00:33:34.140
design phase, and so I don't know why it's set up this way.
00:33:40.380
One reason to suppress the somatic response, the bodily response, is that tends to be a
00:33:47.320
unitary interpretation, meaning at this moment, I feel alert but calm, so I feel good.
00:33:53.600
But I'm guessing there's a lot of signals coming from the body, and in fact, there are
00:33:57.740
to my brain, but I tend to just say, I feel pretty good.
00:34:00.420
In fact, I'm very delighted to be here, so I feel good.
00:34:04.220
Those tend to be very kind of binned responses, and they're fairly generic.
00:34:09.900
Whereas your description of what the prefrontal cortex does, which is an accurate one, I should
00:34:14.180
say, of imagining different selves and different outcomes almost requires that we suppress how
00:34:23.020
You know, I guess we can look to some of our podcasting colleagues, like the Jocko Willinks
00:34:28.120
or the David Goggins, you know, who are either forcing themselves or are somehow up at 4.30
00:34:34.880
in the morning and pushing through that, what I call limbic friction.
00:34:38.180
You know, the limbic system is saying, I'm tired or I'm anxious and going against that.
00:34:42.800
So there's literally a required suppression of the bodily response in order to imagine how
00:34:49.260
we would feel when we complete this or how terrible we would feel.
00:34:52.400
How much of that, how much of that, so let's parse that into two parts, because you could
00:34:57.640
imagine there's an inhibitory component where you're directly in competition with an underlying
00:35:02.760
So the top-down story is, so for example, if you're responding to something in an irritable
00:35:08.440
way that's being directed to you on Twitter, there's going to be a limbic rage response that's
00:35:13.680
associated with that, which you can then suppress.
00:35:15.880
But then the question there that's quite complex, I would say, is something like, to what degree
00:35:21.500
do you think you're directly suppressing that with the prefrontal cortex, and to what degree
00:35:25.520
do you think you're spinning up an alternative self that, if embodied, wouldn't require that
00:35:34.420
And so you're switching to a new identity in which that limbic response is no longer germane.
00:35:42.200
And so the reason that it disappears is not because you directly suppress it in an inhibitory
00:35:46.800
manner, but because you replace what's necessary physiologically, given your new understanding
00:35:54.240
I think it's some of both, but I've never been able to really, like, wrestle that through.
00:35:58.560
Yeah, so I think what you're getting to is, what we know is that the prefrontal cortex and
00:36:03.500
its associated networks contain a near-infinite, if not infinite, set of possibilities, right?
00:36:09.680
I mean, of course, it's bottlenecked by experience, and it's bottlenecked by one's imagination.
00:36:17.640
But, you know, the number of different possible cells that one could imagine is near-infinite
00:36:23.500
Whereas the number of different bodily states that one can have are actually very finite.
00:36:30.620
And if you think about the autonomic nervous system, and in my laboratory, we've studied
00:36:35.300
this typically in the context of fear and confrontation, that the simplest way to put this in a kind of
00:36:41.780
pop neuroscience way would be to say, you know, we can either be back on our heels, meaning
00:36:47.860
retreating, or we can be flat-footed, sort of calm in our stance, or we can be forward center
00:36:53.620
We can be in sort of pursuit and or competition.
00:36:57.240
There really aren't other motor responses for an animal, including humans, right?
00:37:02.460
You can either stay put, back up, or go forward.
00:37:06.820
Yeah, well, it's useful for people to know that that's the basic platform upon which emotions
00:37:11.440
are erected, too, is that emotions are like signals of those action tendencies.
00:37:21.760
And so generally, we associate positive emotion with forward movement.
00:37:25.480
And that would be positive emotion that's dopaminergically mediated, fundamentally.
00:37:29.040
And then the halting would be, well, it can be calmness because there's nothing to do,
00:37:33.640
but it can also be the paralysis that fear induces.
00:37:36.900
And then panic and retreat are more, they're sort of on the border between anxiety and pain,
00:37:47.480
So these three major categories, I think, encompass most, if not all, of the possible responses,
00:37:52.700
as you said, and probably form the base set for all emotions.
00:37:56.200
I mean, my laboratory studied this mainly in the context of fear and confrontation.
00:38:00.060
And one of the reasons we started to explore this was the following.
00:38:03.060
You know, we've all heard of fight or flight or rest and digest, right?
00:38:07.140
Those correspond to the alertness system and the calmness system of the autonomic nervous
00:38:13.140
But what we observed in animals and then now in human studies, we published about a year ago,
00:38:18.320
is that when people are confronted with an anxiety-provoking scenario, in our case, we do this
00:38:24.220
with virtual reality because we need to do it in the laboratory, we find that we find
00:38:30.960
I mean, the thing that can raise their autonomic arousal, that has them in a mode of considering
00:38:35.420
different options and trying to figure out what is strategic and what they're capable of
00:38:39.920
Could be heights, could be confrontation with a predator, animal, it varies by person to
00:38:46.900
Even Navy SEALs that we brought to the laboratory or other people from the special operations
00:38:52.340
community, they all, each and everyone has their pain point.
00:38:55.680
What they do in response to that pain point is really what's interesting.
00:38:58.760
And what we found was that the pause or freeze response certainly was associated with autonomic
00:39:13.540
People always think of panic, you know, just being paralyzed in panic.
00:39:18.460
Retreat was the next level up in terms of levels of heart rate change and levels of change
00:39:26.380
We actually recorded from human insula through a partnership with neurosurgeons.
00:39:31.060
And then we found that there were a subset of individuals and animals in the parallel
00:39:34.700
animal work that would confront a fear, not necessarily reflexively, but after some consideration, they
00:39:41.760
would lean into the challenge, essentially confront the thing that was making them feel
00:39:45.740
And it turned out that that response, surprisingly, was associated with the highest levels of
00:39:53.840
So, but that would be heart rate activation particularly?
00:39:57.260
Heart rate activation and a change in what it's called the so-called gamma wave activity
00:40:06.500
And what we found was that people who were willing to lean into that challenge, the insula
00:40:12.540
took on essentially a change in its activity patterns, this gamma pattern.
00:40:17.420
The heart rate increased, breathing increased, sweating increased.
00:40:21.500
So these are all the marks of an anxiety attack.
00:40:24.100
But here, if you were to just look at the behavior of the person or the animal, what you'd
00:40:28.260
find is that they were marching forward toward their fear.
00:40:34.980
So now you did an animal study with mice where you showed, if I remember correctly, that the
00:40:40.100
mice that were showing tail flicking, which was a prodroma to that exploratory activity,
00:40:44.560
showed a particular form of brain activity that if you replicated with stimulation was more
00:40:53.400
So here's where the surprise came, the additional surprise came in.
00:40:58.160
We thought, okay, wow, well, there are animals, these mice will tail flick in response to a
00:41:02.640
threat, which is essentially saying, come on, let's go, let's fight.
00:41:07.860
And that tail flicking paralleled in the human studies with people being confronted with it.
00:41:12.620
For somebody who's scared of heights to go through a virtual reality scenario of being
00:41:16.500
up on a high beam between buildings might not sound like a big deal to the average video
00:41:20.240
gamer or to you and me, but is an absolutely terrifying experience for those people.
00:41:25.300
But a subset of them will just march out onto that platform or even explore jumping off the
00:41:30.560
platform with the understanding that it's virtual and get very scared, but they will do it.
00:41:35.660
And they also show these changes in insulin activity and changes in heart rate and breathing.
00:41:40.300
What was interesting to us was the mouse data told us that if you stimulate the brain area
00:41:45.460
that was associated with all of this, it's an area of the midline thalamus.
00:41:49.480
I don't want to get down into details of structures too much, but it was a very mysterious area,
00:41:53.740
not been explored much before, had this incredible name of nucleus reunions.
00:41:58.940
The neuroanatomists name these things peculiar ways, as you know.
00:42:01.820
But if we were to stimulate that brain area in mice, we could convert a terrified, non-confrontational
00:42:07.320
mouse into a mouse that was willing to confront its fears in a healthy and adaptive way.
00:42:11.880
It wasn't being foolishly running into the jaws of a predator.
00:42:15.160
It was being very strategic in its confrontation.
00:42:17.260
The interesting thing was if we introduced no fear stimulus, no heights, no predator,
00:42:24.780
no nothing, and we just tickle this brain area, what we found is that animals and humans
00:42:33.160
In fact, they will work for that feeling more than they will work for other stimulation.
00:42:37.100
And in how do, okay, so a bunch, I've got a bunch of questions about that.
00:42:41.560
So the first is, how do you think that's related to hypothalamic dopaminergic release in exploratory
00:42:48.220
states and the psychomotor stimulative effects of drugs like cocaine and amphetamine?
00:42:52.580
And then second, if you put someone in a chronic state of activating that brain area, say you
00:42:59.080
did that by teaching them to approach their fears rather than to run from them, would
00:43:03.860
that produce epigenetic changes that would transform them physiologically?
00:43:11.960
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00:44:18.900
The dopamine system is absolutely critical here.
00:44:24.680
In the animal studies, we identified, because we could place tracers in the brain and measure
00:44:28.140
connections, that indeed, this brain area in the midline thalamus connects directly to
00:44:32.900
the major hubs of dopamine release in the brain.
00:44:35.720
They have names like nucleus accumbens, et cetera, ventral tegmental area.
00:44:39.360
So that was great, because it confirmed for us that...
00:44:41.540
So it is tapping the primary approach-related positive reward system.
00:44:45.700
But it's a very major nucleus that allows that to happen, particularly in the face of
00:44:53.600
And one thing about the dopamine system that's so important and also explains a lot of pathology,
00:44:58.680
but also a lot of human evolution, is that we have basically one major reward system,
00:45:05.920
You know, I sometimes like the analogy that, you know, nowadays you hear about cryptocurrency
00:45:10.540
or the dollar versus the euro versus the this versus the that.
00:45:14.340
There's only one currency in all of reality, actually, and it's dopamine, whether or not
00:45:18.900
it's the dollar back to dopamine or it's euro back to dopamine or Bitcoin back dopamine.
00:45:23.360
In the end, whether or not someone has a billion dollars or two dollars is really that currency
00:45:30.020
resides as something that's transacted in the real world, but their notion of power and
00:45:37.200
And so, too, the potential for mates, the potential for food, how much food you have, you know,
00:45:41.360
how much meat you have stored in the freezer tells you a lot about your security and well-being
00:45:47.500
And that's but and that is translated into a dopaminergic internal representation of how
00:45:56.160
So this system of fear versus confrontation taps directly into the dopaminergic system.
00:46:01.620
And there's a beautiful set of studies that were done in the 1960s, published in the journal
00:46:06.460
Science, as you know, one of the you know, one of the top journals to publish in.
00:46:09.920
Again, this is not work that that I did, but where they gave people, human beings, the
00:46:14.780
option to stimulate a number of different brain areas just sitting in the clinic.
00:46:18.460
And some brain areas would evoke feelings of drunkenness, others would evoke feelings
00:46:22.880
of of anger, others of sadness, others of sexual arousal.
00:46:27.180
And the area that these subjects all prefer to stimulate the most, in fact, they would just
00:46:32.240
sit there and lever press pretty much all day long was this midline thalamus area.
00:46:36.500
And the subjective feeling that they reported, I find this interesting and would love your thoughts
00:46:41.720
on this, is one of mild frustration, anticipation of something, although they didn't know what.
00:46:49.120
And it's this idea, I think, that it's tapping into the dopamine system.
00:46:55.340
The dopamine system says something good is going to happen.
00:47:01.560
And it's an appetitive state in some sense, because it doesn't signify the acquisition of...
00:47:12.600
And you might think that being driven forward would be unpleasant.
00:47:16.260
But if you're, in some sense, if you're activating the systems that drive you forward voluntarily,
00:47:21.680
then that's the most positive form of positive reinforcement you can have.
00:47:25.960
I think I read animal researchers who said that when they watched animals who were bar pressing
00:47:32.000
to receive stimulation in those brain areas, the animals would look forward as if something
00:47:38.500
was about to appear that they wanted to have appear.
00:47:49.900
And here I'm robbing words from others, like my colleague Anna Lemke, who, you know, it's
00:47:56.180
It's not about pleasure as much as it is about craving and motivation and drive.
00:48:13.220
We were in a neurological chat room, so to speak, for a neuropsychological chat room for
00:48:18.080
And I had a chance to interact with him a fair bit in that.
00:48:24.460
And thank you for calling people's attention to his work.
00:48:26.940
I know you've done that many times and such key work.
00:48:30.740
The dopamine system is in touch with the autonomic system, sure, because it has to register
00:48:39.220
The prefrontal cortex is actually part of the dopamine reward system.
00:48:44.340
And then we just think about nucleus accumbens and ventral tegmental area.
00:48:47.680
But the prefrontal cortex, because, as you pointed out before, it is generating possible
00:48:52.820
outcomes, different rules, different selves are being projected into the future.
00:48:56.940
You can think that the two marshmallow tasks, the classic, you know, give kids the option
00:49:01.920
to either have a marshmallow now or wait and have two marshmallows.
00:49:05.200
And the cute little videos of the kids, you know, in the room with the marshmallow, sniffing
00:49:10.260
Occasionally, a kid will just stuff it in his mouth.
00:49:12.240
Another child will turn away, you know, delightful, right?
00:49:16.020
And all sorts of ideas have come about how they do in life versus if they can wait or not
00:49:24.600
The key thing with dopamine, I think, that encapsulates the most of it is this notion
00:49:28.640
of reward prediction error, which is very simple.
00:49:31.180
If you are excited and anticipating something, you are generating some internal sense of the
00:49:43.100
The disappointment that they experience actually brings them far lower than they would feel,
00:49:51.300
much more sad than they would feel than had you not told them you were going to get ice
00:49:55.860
cream, which speaks exactly to what you were saying, that it's an anticipation signal.
00:50:04.280
They would have been better off being not told they were going to the ice cream store.
00:50:09.520
If you anticipate that it's going to be open, and again, this could translate to any scenario
00:50:14.500
and it's open, there's a dopaminergic signal upon receiving the reward, but it then drops
00:50:26.260
So we always think of the ice cream is the reward.
00:50:29.040
Well, actually, the reward was right before you had that first lick of ice cream because
00:50:35.860
It's true of people who sell a company or they're anticipating something exciting or
00:50:42.940
It also sort of partially explains this notion of postpartum depression, where people are
00:50:48.820
so excited about something, the delivery of a child or something on the arrival, and then
00:50:58.300
There might be an exhaustion component there, too.
00:51:00.320
Well, it's also the case, if I remember correctly, that that dopamine kick, so imagine what it
00:51:06.900
does is backtrack the neural systems that were activated as the reward was approached.
00:51:15.080
So then it feeds back reinforcement, not reward, but mediates cellular growth and maybe myelinization.
00:51:25.400
It's increasing the efficiency of the neural connections of the systems that were activated
00:51:30.140
just prior to receiving that reward in the order they were prioritized, in the order they
00:51:36.600
So the closer the behavior is to the receipt of the reward, the more it's reinforced and
00:51:43.620
And then there's a decay function going back in time.
00:51:46.200
And so, and that's partly how an addictive sub-personality can grow, too, right?
00:51:52.960
Because you can imagine that there's a certain state of mind that you're in.
00:51:56.200
Maybe it's a state of something approximating nihilistic hopelessness that grips you every
00:52:01.620
time you're motivated to seek out your favorite drug.
00:52:04.540
And that's fairly far back in the activation chain, but it's there every time you take a
00:52:08.980
So what happens is the dopaminergic reinforcement produced by the drug reinforces that nihilistic
00:52:15.840
hopelessness that drives the drug-seeking behavior.
00:52:18.580
And that's how, in part, you develop a monkey on your back.
00:52:21.220
Yeah, I love the example, even though I am sad that it happens for people.
00:52:26.760
I love the example because what you're saying is that, and it's exactly right, that the memory
00:52:32.340
for events and states of mind and emotions that preceded a successful collection of reward
00:52:39.180
or arrival at reward is set into a huge number of motor commands, some of which are subconscious.
00:52:46.460
And the ultimate dopamine signal, actually, I experienced this the other day.
00:52:53.900
My girlfriend and I decided to go to the beach.
00:52:55.780
We were going to do this little ritual that we've been talking about doing for a while.
00:52:59.280
And I had on a piece of paper what we had written out we were going to do.
00:53:10.220
And I thought, oh, my goodness, how did I screw this up?
00:53:12.300
Like, of all the things, you know, I'm supposed to, you know, I'm 47 years old.
00:53:22.360
So I went back to the car, long walk, looking everywhere.
00:53:26.140
But I thought, gosh, where's this piece of paper?
00:53:33.100
And I thought, okay, this is really embarrassing.
00:53:37.500
We didn't have our phones intentionally either.
00:53:40.760
And then I saw the piece of paper on the beach.
00:53:47.700
What happened there was my dopamine had dropped way below baseline.
00:53:51.780
Because I was disappointed that I'd lost it, disappointed in myself, et cetera.
00:54:03.580
If you're highly anticipatory and it doesn't make itself manifest, then you were seriously wrong.
00:54:09.120
So you're going to take an emotional hit as a consequence of that.
00:54:12.040
I think that's also associated, that emotional hit, that pain that you feel.
00:54:16.480
I think that's actually associated with the beginning stages of the death of the systems that mediated that initial response.
00:54:23.940
Because you should eradicate systems that make you anticipate that don't work.
00:54:29.220
And that means those systems, which are already instantiated and alive in some sense, have to decay and die.
00:54:35.240
And it strikes me as highly probable that you're going to pay a price in something approximating pain for the death of those malfunctioning systems.
00:54:43.260
It's also why, because why wouldn't they fight for their lives to some degree?
00:54:46.940
Why wouldn't they resist the decay and death that might be necessary to keep you going?
00:54:51.520
There should be some pain associated with that logically.
00:54:56.760
Yeah, it's an interesting way, a lens to view it through.
00:54:59.240
That that self-image that I had in that moment of, you know, I'm the responsible partner who can take care of a simple thing, right?
00:55:05.900
For this nice little ritual that we've been talking about doing for a while.
00:55:17.660
Because imagine you anticipate something, and then you make a mistake.
00:55:21.000
Now, the question then becomes, how significant is the mistake?
00:55:25.700
And one view of your error would be, well, the paper blew out of my pocket, and that could happen to anybody.
00:55:32.160
And the more catastrophic interpretation would be, and it's an extension of the thought path that you started to walk down.
00:55:43.440
And there's something wrong with me as a person.
00:55:45.600
And then a depressive person would go even further.
00:55:47.860
They'd say, well, not only is there something wrong with me in this decision, this is a decision like every other decision I make right now.
00:55:59.220
And there's no way I'm going to change in the future.
00:56:01.760
And so the depressive takes that punishment response, let's say, that's a consequence of failed anticipation, and can't bind it.
00:56:10.920
And it just takes out all of their potential future selves.
00:56:26.940
Because indeed, if I'm honest, my thought train went to the point of, you know, I didn't think, oh, I'm a total failure because I lost this piece of paper.
00:56:34.660
I thought to myself, well, you know, if it were a priority, I would have ensured I wouldn't have lost it.
00:56:47.160
You start to sift into the full set of questions.
00:56:50.600
And then, of course, finding the paper resurrects the sense of self.
00:56:55.620
It was, you know, I think it was in that movie Pulp Fiction.
00:56:57.900
Yeah, well, that binding problem is really tricky, eh?
00:57:00.520
Because, so, there's some good rules of thumb for that, which is one of the rules of thumb for that that's extremely useful, that's socially instantiated, is innocent until proven guilty.
00:57:13.820
Right, so you might say when those thoughts come up, because they're adversarial and accusatory thoughts, you might say, well, that is part of the realm of possibility.
00:57:21.640
But I shouldn't, when your child does something wrong that's minor, you don't say you're a rotten kid.
00:57:28.540
You say, you bind it, you say, look, kid, here's a bunch of things you're doing right.
00:57:34.640
But in this particular example, this specific situation, here's the minimal thing you did incorrectly and how to alter it.
00:57:42.780
And it's a really good habit of mind, it's like, to address towards yourself as well as to other people, which is to say, well, what's the minimum crime that I am responsible for in this moment?
00:57:52.680
And that's part of this miracle of the presumption of innocence, and especially without proof.
00:57:58.600
A lot of what I did in my clinical practice to people who had a depressive temperament was help them make a case for themselves.
00:58:04.300
It's like, well, maybe you're as bad as you think you might be, but maybe not.
00:58:10.180
Let's take the contrary argument, let's make you as innocent as you can be in this situation, and only narrow the repair to the absolute minimum that needs to be manifested.
00:58:21.180
Now, some people don't have that problem because they don't have a depressive state of mind, let's say.
00:58:26.480
They're somewhat resilient to the cascading effects of punishment.
00:58:30.460
Those are people who are low in trait neuroticism, by the way.
00:58:33.380
So you could think of trait neuroticism as an index to which the degree failure co-activates punishment across a whole sequence of nested selves.
00:58:45.760
The higher you are in neuroticism, the more likely a given error is to cascade up the hierarchy of possible selves.
00:58:54.280
And it's a trade-off because sometimes when you make one little mistake, it is actually an indicator of a flaw in your character.
00:59:02.380
And it certainly can't be responded to that all the time because then you'd never be able to make a mistake without wiping yourself completely out.
00:59:10.900
Is it fair to say that, at least in the raising of children and maybe in the raising of ourselves, that we should, as much as possible, try and emphasize that errors are due to state, not trait?
00:59:25.220
And you do that in an argument with your wife as well.
00:59:29.360
You want to make it as local and precise as you possibly can.
00:59:34.660
And that's also one of the advantages to removing yourself from a rage or an anxiety state.
00:59:41.180
Because a rage or an anxiety state is low resolution and global.
00:59:47.860
And so you want to specify it and you think, okay, well, what's the minimum necessary behavioral transformation to ensure that similar mistakes are not replicated in the future?
00:59:59.840
And generally that doesn't require, like, read.
01:00:02.620
It's like if your roof leaks, you don't have to dig a new foundation.
01:00:07.060
And you might think, well, the rain's coming through, so you have to tear down the whole house.
01:00:13.240
And you might panic and run around because the water's coming in.
01:00:15.880
But it's still a bad idea to dig up the foundations every time something trivial maintenance problem needs to emerge.
01:00:21.820
And so one of the things that's very useful to learn is, like, well, is this only a trivial maintenance problem?
01:00:28.520
And one of the advantages to that, too, is that if it's not the collapse of your entire self, let's say, and it's a trivial maintenance problem,
01:00:36.000
you're much more able to activate that courageous response to anomaly that's part and parcel of exploratory behavior and eventual success.
01:00:44.420
So when part of the trick of many sorts of, well, I would say religious training enterprises,
01:00:51.000
certainly the meditative enterprises, is something like, how do you tell yourself a story, like a real story,
01:00:57.660
though a story that actually works, that's most likely to put yourself in a position where you can confidently approach the thing that's blocking your path?
01:01:08.760
This notion, you brought up three points that I think immediately of the related neurology,
01:01:14.420
but I'm going to repeat them back to make sure I understand because they're very salient in my mind right now,
01:01:18.860
which is this notion of the prefrontal cortex trying different versions of self and working with,
01:01:25.320
contending with bodily states in those moments.
01:01:28.800
And the sort of either death or, you know, or growth or resurrection of those different selves, depending on the outcomes.
01:01:39.860
The next, this notion of state or trade I find fascinating.
01:01:43.440
You know, after I found that piece of paper, I felt like I was like the greatest, you know,
01:01:47.360
I got this huge dopamine surge because it's, it's the Delta.
01:01:49.840
It's the difference between your baseline and the P.
01:01:53.780
I mean, I should have thought, oh gosh, I wasted 30 minutes of our time.
01:01:56.600
But instead I thought I found, I found this amazing.
01:02:00.920
I think there was a, it was the movie Pulp Fiction.
01:02:03.020
I think it was the John Travolta character said something, I'm going to get this wrong.
01:02:05.680
But, you know, he said it was almost worth losing that just to find it again.
01:02:10.040
He was talking about something, I forget what it was, and I think that captured it there
01:02:14.840
And then my question is, however, is, you know, we've been talking about if you lose something
01:02:19.960
or if an outcome was not great, how that can fan out into a kind of over-interpretation
01:02:25.240
of traits and this kind of depressive neurotic interpretation.
01:02:28.420
What about the opposite where certainly for every success that one has, you know, like
01:02:34.720
for instance, if I had not dropped this piece of paper, I wouldn't have thought of it as
01:02:39.380
I would have just thought of it as what I was required to do in that moment, right?
01:02:44.980
And I'm not somebody who celebrates with everything I check off my list.
01:02:50.280
I, you know, sometimes, yes, there are bigger, bigger things than others, bigger achievements
01:02:54.580
than others, but I can imagine that certain people might over-inflate their wins.
01:03:04.260
Yeah, well, for a manic, every possible self is wonderful simultaneously.
01:03:12.040
Because every possibility is 100% dopaminergically, giving them a dopaminergic kick.
01:03:18.240
And so it's complete positive emotion catastrophe on the manic side.
01:03:24.460
So these systems, they have to exist in such tight balance, right?
01:03:28.000
Because all of your potential positive selves are not to be regarded with exceptional enthusiasm.
01:03:35.840
Even though, like, people don't like being treated for mania often because especially
01:03:40.840
going into a manic state is very enjoyable because it is associated with enthusiasm.
01:03:46.000
And that's all dopamine-mediated positive emotion.
01:03:54.680
And one is, well, it needs to be judicious and differentiated.
01:04:00.380
You shouldn't be positive about everything, which is why you shouldn't reward children
01:04:06.660
And so when a system loses its focus and target, its capacity to discriminate, then it
01:04:13.240
And people don't often think of pathologies of positive emotion, but mania is definitely,
01:04:24.660
Someone who's really manic is a different person every sentence.
01:04:30.240
It's interesting because one thing that we know, again, about the dopamine system, it's
01:04:35.740
The other thing that is absolutely clear about the dopamine system is that it is tacked to
01:04:43.280
pursuit more than it is to outcomes, but it is highly subjective to interpretation.
01:04:50.160
And this is exciting, actually, and holds great possibility.
01:04:52.880
I mean, putting mania aside, when dopamine is elevated, it tends to put our perception to
01:04:59.340
things outside of our, I would say, beyond the confines of our skin.
01:05:03.160
That person, you know, that potential lover or mate, that food, that reward, that thing.
01:05:09.760
And I think this explains why manics are all about plans in the future.
01:05:13.100
I'm going to do this, and I'm going to be president, and I'm going to do that, and et
01:05:15.700
Yeah, you see the opposite in neuroticism, because one of the cognitive phenomena that
01:05:24.520
loads very heavily on neuroticism is self-consciousness.
01:05:28.300
And so when you fall into anxiety, then there is this internal obsessiveness, which has to
01:05:37.420
Which parts of me are malfunctioning and need to be eradicated?
01:05:40.980
And one of the things I used to do with my socially anxious clients, so they would go
01:05:45.280
into a social situation, often with eyes downcast, by the way, and they would be so intensely
01:05:51.800
concentrating on their own internal sensations that they would fail to make eye contact with
01:05:58.500
And then they would be awkward, because they weren't reading the cues they could have read
01:06:04.380
And then the conversation would become disjointed, and then they would get anxious and fall into
01:06:11.760
And so one of the things that I taught them to do wasn't to try to calm themselves down,
01:06:20.160
So when you go into a social situation, pay more attention to the other person.
01:06:27.520
And if the person had any social skill, sometimes I had clients who had no social skills, and so
01:06:32.860
they were anxious socially, because they actually didn't know how to behave socially.
01:06:36.640
And so then you had to teach them the social skills.
01:06:39.240
But some of them had the skills, but wouldn't activate them, because they were so neurotically
01:06:43.900
obsessed with their own inadequacy, that they failed to attend to the cues that would elicit
01:06:54.980
And then they would automatically respond, because they knew how to have a conversation.
01:06:59.480
This brings us to some of the practical tools that I think my laboratory has been working
01:07:04.320
on, which is, you know, many people have heard about the utility of mindfulness meditation,
01:07:07.620
which most typically is close your eyes, focus on third eye center, your breathing, you know,
01:07:11.920
bring your awareness to your so-called interoception.
01:07:14.780
You know, perception can be interoceptive from the skin inward, or exteroceptive to the world
01:07:20.260
The data are showing that people who are overly socially anxious, for instance, they are too
01:07:29.880
In fact, they can count their own, they can count their own heartbeats without taking
01:07:33.520
their pulse with their finger, which is a high, which is a great indicator of how interoceptively
01:07:39.340
Those people would probably be best to avoid inward focusing, excuse me, meditations.
01:07:45.440
Well, well, it's hard to say, because there may be a variable there that's relevant.
01:07:51.680
See, the reason that socially anxious people are so interoceptive is it's involuntary, right?
01:07:57.380
They get gripped by the negative emotion, and then that produces this intense, obsessive
01:08:05.240
That might not happen if they did it voluntarily.
01:08:09.360
Because you're going to activate an entire different system, the one you already talked
01:08:13.500
This is why exposure therapy works so well in psychotherapy.
01:08:17.280
It's like, well, I'm afraid of something, and if I go near it, then I'm possessed by negative
01:08:25.140
I'm going to have you go near it purposefully, and what you're going to find is that to the
01:08:29.840
degree that you do it purposefully, that response will be quelled, and that happens.
01:08:35.500
It's extraordinarily reliable, and it does seem to be—this is why I was wondering about
01:08:40.900
So imagine that you have someone who's habitually avoidant, and maybe they're avoidant because
01:08:45.640
when they become possessed by negative emotion, they become hyper-aware of their internal state,
01:08:50.540
and they feel the panic, and so then they freeze or retreat, and they do that constantly.
01:08:56.780
And so—and then they're in this terrible negative emotional state all the time because
01:09:02.000
every time they see a stimulus that's associated with retreat, they get gripped by these interoceptive
01:09:09.200
And so you say to them, well, we're going to reverse that instead of you being gripped
01:09:13.840
by that, by fiat, by the command of these underlying systems, you're going to expose yourself to
01:09:21.480
Now, you could imagine that what you're doing is imposing the dominance of that nucleus reunions
01:09:31.600
And so I'm wondering—see, if you do that repeatedly with people, not only do they stop
01:09:37.260
being afraid of the things that you're showing them, that you're exposing them to, but they
01:09:43.300
become more likely to approach other things they're afraid of, far more likely.
01:09:47.620
In fact, it doesn't exactly look like people get less afraid at all.
01:09:51.860
It looks like what happens is they learn to get braver, and that generalizes.
01:09:56.680
And so I was wondering, when I was reading your research today, is it the case that if
01:10:00.780
you put someone in chronically and voluntarily into a state where, let's say, the nucleus
01:10:05.520
reunions is activated, that that transforms their character at the genetic level so that
01:10:12.260
that's more likely to be the case in the future?
01:10:14.340
So it really retools them all the way down to the DNA.
01:10:21.160
Again, you're asking the exact questions that we're pursuing now.
01:10:27.660
There are two modes of changing these responses in the neural circuitry.
01:10:31.600
One lies in so-called neuroplasticity, which could be strengthening of synapses or just
01:10:39.620
There's a lot of excitement about the addition of new neurons, but really that only reflects
01:10:43.400
a small percentage of changes in the brain of adults.
01:10:46.600
It's actually more of the rewiring of existing connections.
01:10:50.620
Something gets rewired such that the response is then different going forward.
01:10:56.140
Any system that taps into the dopamine system, and indeed, everything we're talking about
01:11:01.000
today does, is highly subject to reward-induced neuroplasticity.
01:11:07.360
In fact, so much so that some of the best experiments done on this have shown that if you give somebody
01:11:12.360
a drug that transiently increases dopamine, works better if you also transiently increase
01:11:20.120
But for the next hours, you know, one to four hours, the neuroplasticity is scaled up, right?
01:11:27.600
It takes many fewer trials or many fewer cognitive behavioral therapy sessions.
01:11:34.200
There are many fewer learning sessions to create a permanent shift in the neurology such
01:11:39.060
Okay, so does that mean that if you believe when you are at the outset of a task that
01:11:44.100
you're doing something important, so you're approaching a valued goal, and you have a lot
01:11:49.300
of anticipation as a consequence of that, does that mean that you put yourself in a neurochemical
01:11:58.060
So if you believe what you're doing is important, if you truly believe that because it's related
01:12:01.840
to an important goal and it's a pathway forward, then that's going to transform into a manifestation
01:12:08.600
And every time I hear about the sort of, you know, woo statements about, you know,
01:12:13.340
you know, I don't want to offend anyone here, but sure, I'll just say, you know, you hear
01:12:16.500
about the secret or manifesting or intention, all of that is really, it's capturing a fundamental
01:12:22.100
principle of the way that our neurology works, which is that the prefrontal cortex as a rule
01:12:27.240
setting, but flexible rule setting machine that taps into the dopamine system can absolutely
01:12:33.540
adopt new rules for reward release in the brain.
01:12:37.660
Again, there's basically only one reward system.
01:12:39.960
There's also serotonin system, as you know, but the dopamine system is the major currency
01:12:44.540
So much so that, for instance, everyone knows that food is rewarding.
01:12:50.480
We eat a delicious steak or something, and we feel rewarded.
01:12:54.280
However, if you are somebody who can attach thoughts such as fasting is good for me, I'm
01:13:01.140
going to do intermittent fasting, or I'm not going to eat those foods, and therefore, I'm
01:13:04.940
going to attach my thinking to the rewards that will come with better health, better aesthetics,
01:13:16.160
And what actually starts to happen is that people start to enjoy the foods that they are
01:13:23.840
There are actually beautiful data on this from my colleague, Ali Crum's laboratory at Stanford,
01:13:28.720
that if you believe a food is nutritious and good for you, it actually has better impact
01:13:36.440
Of course, there are the rules of physiology and nutrition that still apply, right?
01:13:40.460
You can't tell yourself that the garbage is good for, right?
01:13:43.360
But there's a significant scaling up of the positive response that's associated with dopamine
01:13:47.840
and hormonal cascades, which we can talk about in a moment.
01:13:50.840
In the same way, if one adopts a sort of a Carol Dweckian growth mindset approach, okay,
01:13:56.400
it's not about receiving the reward that the more strain I feel, the more effort that I'm
01:14:04.060
That over time will become a rewarding state such that one will pursue states of reach.
01:14:10.100
Yeah, well, it should be also proportional to the magnitude of the goal.
01:14:16.700
And so this is, I think, why people are so obsessed in some sense with the search for
01:14:27.500
So you can imagine two people laying bricks, they're building a gigantic wall, and the
01:14:32.480
one person thinks, oh my God, you know, this wall is going to take 100,000 bricks, and I'm
01:14:37.840
laying one at a time, and I'm wasting my life away, trivially adding to this gigantic brick
01:14:48.940
And the other person thinks, in 300 years, this is going to be a cathedral.
01:14:54.700
And so the person in the second state is doing exactly the same thing at a local level, laying
01:15:04.160
And that means the reward that's attendant upon the laying of the brick is proportional
01:15:08.560
to the goal, to the aim of the entire behavioral process.
01:15:15.040
And so it seems to me, so if you're aimless and goalless, and I know you've done some work
01:15:19.940
on goal setting, if you're aimless and goalless, then you can't elicit any positive emotion.
01:15:25.520
And if your goals are fragmented, which is also what happens if you're aimless or your
01:15:30.280
goals lack unity, if your goals are fragmented, then no given behavioral manifestation can elicit
01:15:35.780
any dopaminergic reward, because it's not a step forward to anything desirable.
01:15:44.640
Well, according to your account, I didn't know that.
01:15:47.380
See, I didn't know that when you put yourself in a state of apprehension in relationship to
01:15:51.880
a valued goal, that your neuroplasticity improves and you can learn better.
01:15:57.560
So, because, you know, I just developed this app for writing called Essay.
01:16:01.040
And one of the things we do is we tell people that when they sit down to write an essay,
01:16:08.300
that's the most important thing you have to do, is you have to have a question in mind
01:16:12.400
that you regard finding the answer to as worthwhile.
01:16:19.940
So even if you're assigned a topic, you have to find something within the topic that grips you
01:16:24.740
and provides you with the motivation that's appropriate to move forward with the essay,
01:16:37.500
And you're going to write something dull and terrible, and it's going to frustrate you
01:16:41.540
And that's because your own nervous system is telling you that you're participating in something
01:16:47.640
And so, but if you do, if you're gripped by the questions, like,
01:16:52.460
It's like, well, you're in a perfect condition to begin to write an intelligible essay
01:16:58.740
And then the writing exercise is going to be gripping because you're grappling with a real mystery.
01:17:04.180
And that's so cool if doing that also puts you in a state where you're much more likely to learn,
01:17:11.100
Because if you're doing something important and you seem to be moving forward,
01:17:17.040
Neurophysiologically, that would make, or evolutionarily, that would make perfect sense.
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01:18:38.680
You know, the system, the dopaminergic system that we're talking about,
01:18:45.860
And the ability to persist toward a goal regardless is a generalizable system.
01:18:51.100
You know, you had that chapter about, you know, get your room in order, right?
01:18:58.060
Even though it's important to have higher goals and lofty goals,
01:19:05.040
because it is depletable and yet it's also renewable and it is self-amplifying.
01:19:12.960
let's say that I'm somebody who doesn't know what I'm working toward.
01:19:17.780
By completing even what seem like menial tasks,
01:19:21.760
like making myself a cup of coffee, drinking it, cleaning up completely,
01:19:26.000
drying the cup and putting it back in the cupboard.
01:19:29.000
What happens is if, even if you make that seemingly trivial goal, the goal,
01:19:34.340
in addition to making the kitchen look nicer, it completes a circuit.
01:19:41.400
And when dopamine is released, and it will be, maybe not to the same extent as publishing
01:19:45.100
a novel, but to some extent, dopamine amplifies our ability to think into the future,
01:19:51.640
to make additional plans that are unrelated to what you just did.
01:19:56.740
And it literally increases confidence and energy.
01:20:02.960
We all think about caloric energy, but what most people are never taught,
01:20:06.500
you know, and if I had 10 things I could teach people, one of them would be
01:20:16.120
It's the thing that makes you jittery when you're a little nervous,
01:20:17.900
but it's also what allows you to move forward, to go out for a run,
01:20:20.900
to pursue any goal, cognitive or physical, et cetera.
01:20:25.220
Epinephrine, which is also adrenaline, those are the same thing,
01:20:27.460
is literally manufactured from the molecule dopamine.
01:20:32.340
If you look at the biochemical cascade, it is dopamine is converted into adrenaline,
01:20:37.820
which is the basis of all energy, all neural energy.
01:20:43.760
And so if one is not in a place of being able to set their goal on a particular lofty goal,
01:20:49.020
a graduate degree, a book, et cetera, yet the way one gets to that is by completing
01:20:53.540
things in their immediate environment from start to finish and closing the dopaminergic loop,
01:20:59.640
Well, those are at least, those are at least micro narratives.
01:21:04.120
So they're not integrated across a long span of time, but they're not nothing.
01:21:08.300
And so one of the things, well, I did write about this in my first book,
01:21:11.340
particularly about putting your life, putting your house in perfect order.
01:21:16.900
one of the things you can do is look around and see
01:21:19.700
what direction you could take locally is fix something.
01:21:23.500
And I used to tell my clients, this is a very good thing to know.
01:21:27.360
Find something that you could do that would make things better that you would do.
01:21:34.400
And there's a humility in that too, because especially if you're in a low energy state,
01:21:37.940
it's like, oh my God, you know, I don't have enough energy to make dinner.
01:21:40.940
It's like, do you have enough energy to put a fork on the table?
01:21:44.800
And sometimes people are so depressed that that's really all they can do.
01:21:47.640
It's like, can you take, can you take a small step forward, no matter how small that is?
01:21:53.720
And so that's, I didn't see, I knew that adrenaline was a by-product or
01:21:58.300
down the biochemical chain from dopamine, but I didn't get the significance of that fully.
01:22:05.900
So basically what you're saying is that if you implement a micro routine,
01:22:09.820
even something like washing a cup and putting it back in the shelf,
01:22:13.020
and you know, that's a good thing because you have a shelf and there's cups on it.
01:22:16.040
You've already decided that's an appropriate way to live is to have your coffee cups on a shelf.
01:22:21.740
If you go ahead with cleaning out the cup and putting it on the shelf,
01:22:25.300
then you've taken steps towards a valuable micro goal.
01:22:29.380
You get a dopamine kick from that, that transforms itself into adrenaline and energizes you.
01:22:35.240
That's partly the reason that it has an antidepressant effect.
01:22:39.960
Some of the more successful classes of antidepressants, again, not for everybody,
01:22:44.220
are the ones of the dopaminergic, adrenalinergic variety, right?
01:22:48.980
Things like apriorone, as opposed to, you know, there's a lot of debate about SSRIs.
01:22:57.420
There's neuroplasticity, which is on the short scale.
01:23:00.060
Completion of an even trivial task, like the putting away of the cup,
01:23:03.480
will give you more dopamine, would give you more adrenaline,
01:23:06.340
which in this analogy of either being back on one's heels, flat-footed,
01:23:10.080
or forward center of mass, regardless of where one is starting out,
01:23:13.040
let's say depressed is back on one's heels, it's going to tilt you forward a little bit.
01:23:20.880
Because again, with the prefrontal cortex being so critical
01:23:23.700
in establishing which of these loops gets repeated,
01:23:28.620
I'm somebody who can get things done, even if they're small.
01:23:34.580
Or you can take another cognitive appraisal there, too,
01:23:44.740
Precisely for the reason that we just described.
01:23:46.580
It's like you might have the cognitive appraisal
01:23:49.140
that doing something local, like cleaning up your room, is small.
01:23:52.400
But it's not obvious at all that that's the case.
01:23:54.380
It's not that trivial to put your immediate surroundings in order.
01:23:59.260
And it can easily be the stepping stone to putting things in order on a broader scale.
01:24:03.740
In fact, it's probably the necessary stepping stone to do that.
01:24:06.900
And so they might seem small, but they're a step ahead.
01:24:12.820
And so they're not as small as you might think.
01:24:16.880
especially if you're depressed a little harder than you might otherwise.
01:24:19.320
By saying, you know, you say, well, this is trivial, but I did it.
01:24:22.880
If you're moving ahead, tilting yourself forward in your metaphor,
01:24:29.920
You're going to get out of this paralyzed or retreat mode.
01:24:34.020
And then God only knows what you're going to be able to do.
01:24:36.360
And I think that if people were to look at these neurological and psychological processes,
01:24:40.500
because we're really talking about both, is as algorithms, right?
01:24:45.360
These are algorithms that have been used by every animal.
01:24:48.840
Think about the animal that's foraging for food.
01:25:02.060
They automatically remember everything that led to that failure.
01:25:06.460
But be good at remembering the things that led to successes.
01:25:09.260
And then ride those neurochemical waves to the next node of exploration.
01:25:14.060
You're talking about exploration versus anxiety.
01:25:15.860
You can also do this with people in your environment.
01:25:18.540
You know, this is something B.F. Skinner pointed out when he was training animals.
01:25:22.340
He said, you can use threat and punishment to train animals.
01:25:27.000
But he said, the most effective mode of training isn't that at all.
01:25:33.560
And so imagine that you're training a rat to climb up a ladder rung by rung and then do
01:25:38.820
a little dance on the top and then climb down the other side.
01:25:41.220
So what Skinner would do, his animals were hungry, by the way.
01:25:47.180
So they were pretty dopaminergically motivated by the provision of any food.
01:25:52.480
He would watch them wander around in the cage where a ladder was, let's say.
01:25:59.640
And then when the rat would get near the ladder, he'd give it a food pallet.
01:26:02.360
And so then it was soon spending a lot of time near the ladder.
01:26:04.620
And now and then, while it was monkeying about, it would put one foot on the one paw on the
01:26:12.740
And then sooner or later, it would put the next paw on and he'd reward it.
01:26:16.020
And so Skinner trained pigeons to pilot guided missiles by pecking on photos in relationship
01:26:29.020
So one of the things you can do in your local environment and with yourself as well is
01:26:32.780
you can watch people around you and you can see when they make small steps towards manifesting
01:26:39.380
some behaviors you'd like to see a lot more of.
01:26:41.880
And then you can tell them in this very differentiated, discriminatory manner.
01:26:46.900
You can say, hey, look, here's the sequence of actions you just undertook.
01:26:58.000
And man, if you do that repeatedly to people around you, and you don't want to do this
01:27:02.800
in a fake or manipulative way, but if you're attentive to what people are doing that's
01:27:06.920
good and you mark that with a reward, man, you produce behavioral transformations at a
01:27:18.240
That's separating the wheat from the chaff in the truest sense, to give credit where
01:27:24.800
And you can imagine you're facilitating growth in the manner that you just described.
01:27:28.920
And maybe what neurologic or genetic transformation.
01:27:34.220
Yeah, the behaviorists like Skinner were truly brilliant.
01:27:38.380
And I think one experiment that I think is worth mentioning, which is kind of speaks to
01:27:42.800
the power of dopamine and why it's so vital to tap into these systems, even through menial
01:27:48.400
tasks, and then to build on their self-amplifying mode so that you can take on bigger things
01:27:53.340
in life, so to speak, positive goals, is there's a classic experiment now that's been
01:27:58.660
done in humans and in animals where you take two rats, separate cages, or you could do this
01:28:04.120
with humans where they're naturalistic conditions, where one of the rats or humans actually has
01:28:09.480
In humans, this happens through Parkinsonian things or the ingestion of drugs,
01:28:12.620
which accidentally deplete the dopaminergic neurons.
01:28:15.600
And what you find is that if you give them an opportunity to experience something
01:28:19.180
pleasurable, like hit a lever and get a pellet of food or people to access some very tasty
01:28:25.260
food, both people with dopamine and with very depleted dopamine, animals with dopamine or
01:28:34.300
They will pursue the food, but only if it's right in front of them.
01:28:37.940
If you put any kind of task between a person or an animal and a reward, what you find is
01:28:44.320
that a rat won't move one rat's length to press a lever to get the food.
01:28:49.580
So they are able to experience pleasure, but what they are unable to do is to embark on any
01:28:59.640
So that means that in part what the dopamine system is doing.
01:29:02.840
So imagine that the purpose of the dopamine system is to elicit a satiating reward.
01:29:09.860
But then the satiating reward is something that has to be approached in steps.
01:29:15.120
And so in order to maintain the motivation necessary to approach the satiating reward,
01:29:19.900
you have to mark each of the steps with a marker of pleasure.
01:29:23.760
And so the dopamine system is marking the intermediary steps.
01:29:26.920
And then it's doing that to overcome the reluctance that you'd have to expend the energy in that
01:29:33.760
micro routine that would otherwise be costly by calculating the fact that there's a net reward
01:29:44.260
And sometimes people will experience tremendous anxiety in pursuit of their rewards.
01:29:48.780
You know, the social situation or the goal or the book, you know, people imagine failure
01:29:53.020
like crazy as I'm sure, you know, we've all heard and seen.
01:29:56.100
And what's critical, again, is this cognitive appraisal, this interpretation of that.
01:30:01.880
If you think of that anxiety as a natural system of getting you to move, of just biasing your
01:30:07.360
body toward movement, toward action, as opposed to inaction, because that's what anxiety really
01:30:14.760
Then you can literally reshape the whole notion of what it feels like to have elevated heart
01:30:19.960
rate, maybe trembling hands, maybe flushing of the face when one is doing public speaking.
01:30:23.620
You do it enough times, you get pretty comfortable.
01:30:26.900
Now, there are situations in life I should just mention, such as sleep deprivation or
01:30:31.820
in particular, that tend to make this whole set of systems with prefrontal cortex and limbic
01:30:44.340
You know, the quickest way to peel somebody apart is to sleep deprive them for two or three
01:30:49.600
So, you know, all the basics of self-care, of good nutrition, social connections, sleep,
01:30:59.180
I want to make sure I answer your question about gene expression and permanent changes,
01:31:05.380
One of the things that is absolutely key about the dopamine system is that it has a fast
01:31:12.340
Dopamine is released, more adrenaline, aka epinephrine, can be released, and you can, you know, this
01:31:17.020
sort of upward spiral of energy and sort of success with the occasional drops, right?
01:31:23.560
Sometimes the phone rings or the doorbell rings and you fail, you know, goodness, you
01:31:29.520
You come home, like, are you going to crash into a puddle of tears?
01:31:31.780
No, you just clean it then and then put it away, right?
01:31:36.220
But there's a slow system associated with achieving wins, even small wins.
01:31:42.480
And that slow system is in the form of hormonal control that then translates to gene control.
01:31:47.400
So two hormones in particular, testosterone and estrogen, which are present in both men and
01:31:52.740
women, males and females, of course, but to varying degrees, are both secreted when
01:32:03.300
This has to do with the relationship between dopaminergic neurons and the pituitary gland,
01:32:07.640
which releases gonadotropins and luteinizing hormones, which then stimulate the testes and
01:32:12.480
the ovaries, et cetera, to release the so-called sex steroid hormones.
01:32:16.460
The sex steroid hormones, testosterone and estrogen, of course, are involved in reproductive
01:32:20.440
biology, but they are both vitally important, provided they are in the proper ratios, for motivational
01:32:28.820
The steroid hormones are so-called lipophilic, and they can cross from the outside of a cell
01:32:34.600
through the cell membrane to actually into the nucleus of a cell and control gene expression.
01:32:40.580
So when we achieve wins repeatedly, and again, this doesn't matter if you're male or female,
01:32:47.180
Testosterone is the molecule that eventually accesses not just cells to control their immediate
01:32:52.920
physiology, but goes into the nucleus of those cells and controls their gene expression.
01:33:00.240
So does that mean, okay, so does that mean that demotivated men are producing less testosterone?
01:33:05.980
We can say that the data show that repeated failures take testosterone levels lower than
01:33:15.820
That is not to say that people with low testosterone will always fail.
01:33:22.000
But just to be clear, because you are correct, but just people sometimes get hitched on this
01:33:28.080
But indeed, one of the quickest ways to boost someone's testosterone is to have them achieve
01:33:38.060
Well, one of the things you do, one of the things you do in behavior therapy constantly
01:33:41.660
is you help people calibrate the zone of proximal development.
01:33:49.680
And so if you're in the zone of proximal development, you're pushing your skill development one increment
01:33:58.440
And so if you see people who are entirely stymied, we're sort of back to the cup of
01:34:03.960
You want to find something they can do locally this week that would constitute at least a micro
01:34:09.960
And if you talk to someone, you say, well, why don't you try cleaning up your room?
01:34:16.160
Because it's a complete catastrophic nightmare.
01:34:19.400
This is often the case with people who are really demoralized and whose life is utterly
01:34:23.780
And maybe they come back later and say, well, you know, I had one client.
01:34:30.220
And he didn't want to mess up this child, but he was living at home.
01:34:34.200
He had a child out of wedlock by accident, but he didn't want to be a useless father.
01:34:45.740
He was living like a 12-year-old, you know, a bad 12-year-old.
01:34:48.720
And so I said, well, when was the last time that your carpet was vacuumed?
01:34:53.120
And he said, well, sometimes my mother does it, but it's probably been months.
01:34:55.740
I said, well, why don't you just bring the vacuum cleaner into the room and just vacuum
01:35:03.500
And I knew that was a bigger task than you might think, because he'd been in that room
01:35:13.000
He told me that he dragged that bloody vacuum cleaner into the doorway and left it 45 degrees
01:35:20.440
across the doorway and then stepped over it for the whole week without actually using it.
01:35:25.300
Yeah, resistance, say, from that was resistance from a psychoanalytic perspective, because
01:35:36.020
I said, look, you've got some drawers in your bureau.
01:35:41.380
It says, like, clean up one half of the sock drawer this week.
01:35:47.160
So you just keep cutting the tasks down week by week until you find the threshold for positive
01:35:53.100
And then what's cool about that, too, is there's a Pareto principle issue associated with it.
01:35:58.360
So if you can find out where the person can start, it isn't linear progress.
01:36:05.000
And so even if they have to start at a micro level, it doesn't really matter because they
01:36:08.880
get much better at it very, very rapidly as they accrue successes.
01:36:12.560
Maybe that's because they're learning in the way that you described.
01:36:25.120
But, you know, if we want to bring this into the common world, you know, a few years back
01:36:29.920
when I started doing some public-facing education, I started getting a lot of questions, especially
01:36:34.640
on YouTube, from young males about pornography and masturbation.
01:36:43.840
We have to remember that this dopaminergic system is generalizable to many different behaviors,
01:36:50.140
Academic pursuits, sports pursuits, relationship pursuits.
01:36:53.060
But fundamentally, it was, again, I wasn't consulted the design phase, but fundamentally,
01:36:58.700
it's tacked into the adaptive survival behaviors.
01:37:01.800
And every species, including ours, has at least two major motivations, which is to protect
01:37:07.560
its young and to make more of itself, to make more young at some level.
01:37:12.920
But one of the absolutely pathologic situations for any animal or human is to be able to access
01:37:20.080
repeated dopamine surges without effort or any pursuit that's self-directed or that's
01:37:28.560
So, for instance, cocaine, a drug which potently increases dopamine or methamphetamine, which
01:37:34.360
potently increases methamphetamine, but doesn't require any sort of adaptive action pursuit except
01:37:44.020
So, essentially, what ends up happening is the circuit that gets rewarded is only the drug-seeking
01:37:49.620
behavior, and no other behavior will give the kind of potent dopamine release that cocaine
01:37:55.520
or methamphetamine will, which is why they are so pernicious.
01:38:00.780
Well, plus they have that powerful reinforcing effect, right?
01:38:04.220
So, not only do you get that kick, but what's reinforced by the dopamine release is the behaviors
01:38:10.520
that were right prior, particularly right prior to the ingestion.
01:38:14.740
And if all that is is the drug-taking behavior, that's all that develops.
01:38:20.480
So, I can see where you're going on the pornography phase.
01:38:25.380
I thought, well, you know, I'm male, and, you know, maybe that's why they feel comfortable
01:38:28.600
But people were saying that we're asking about pornography, and they were asking, you know,
01:38:32.260
I realize we want to, you know, I'll just be direct about it.
01:38:35.740
They were asking whether or not masturbation was bad.
01:38:38.500
They were asking whether or not masturbation with ejaculation was particularly bad.
01:38:43.980
I'm a biologist and a neuroscientist, not a psychologist.
01:38:46.460
But what we know for sure is that if an individual repeatedly engages in this circuitry, let's
01:38:53.600
say masturbation and pornography with increasingly potent forms of stimulation that are on a screen,
01:39:03.940
What's being reinforced is a high dopaminergic response to watching other people engage in
01:39:09.440
sexual behavior, which is very different than being in a first-person sexual experience,
01:39:14.980
So right there, you know that what's being reinforced is not actually any kind of improvement
01:39:23.660
And as these questions started to come in more and more, I started to realize there was a lot
01:39:27.760
of kind of undertones of people talking about fear of or experience with sexual dysfunction
01:39:36.140
I actually don't know the literature on females.
01:39:40.120
Females don't use visual pornography to the same degree.
01:39:46.500
So, and then you start to think about, okay, what happens in the cascade or the arc of
01:39:52.960
What happens is that initially there's a, it's parasympathetically dominant, meaning if somebody
01:39:58.000
is too stressed, they actually can't engage in sexual behavior.
01:40:04.600
But the actual orgasm response and ejaculation is strongly associated with the so-called sympathetic
01:40:10.680
nervous system, which has nothing to do with sympathy, has everything to do with, it's
01:40:15.340
And then it reverses to a parasympathetic response.
01:40:18.180
And a hormone called prolactin increases dramatically after ejaculation in males.
01:40:24.000
That blunts dopamine release and testosterone for a very long period of time, which makes
01:40:28.860
sense if pair bonding and sort of, you know, in our species anywhere, there's this idea
01:40:33.840
that then other molecules would be exchanged with partners, pair bonding, potential for
01:40:39.720
Without getting into a huge discussion about that, the point is this.
01:40:42.840
Masturbation and pornography are potently tapping into the dopamine system and can undermine
01:40:49.460
the very processes of what I consider healthy processes of finding a mate, you know, dating,
01:40:55.620
communication, eventually, if it's appropriate, sexual interaction, et cetera.
01:41:03.640
If you're seeking sexual release through pornography and you go through the whole cycle and you get
01:41:14.000
The, um, it's the biology explains it as what's left there is a kind of an open loop, a kind
01:41:21.700
Because bonding with the self is a, is a complicated notion.
01:41:24.960
I mean, it had, there's a healthy version of that, of course, loving oneself and, um, and
01:41:30.160
And again, this is more, uh, your, uh, far more your domain than mine in terms of what a
01:41:34.680
healthy self-relation is, but in the absence of, uh, a real partner there of a absence of
01:41:41.220
real sexual partner, there's an open loop of neurochemicals, including oxytocin and prolactin,
01:41:46.100
the dopamine, remember dopamine goes up during pursuit anticipation, then peaks and then crashes
01:41:56.100
So this kind of low that people fear is putting them into an a motivated state.
01:42:01.300
If I were to kind of expand on, it would be, it's this, it's this kind of a neurochemical
01:42:05.440
psychological equivalent of making your home environment filthy for a while, not actually
01:42:11.260
putting you into this positive amplification of dopamine.
01:42:14.360
So it depletes the dopamine system and it's likewise in drugs of abuse and addiction.
01:42:21.600
Initially, there's a huge dopamine surge with drugs of abuse like methamphetamine and cocaine,
01:42:25.840
but over time people are using more and more to achieve what is not such a great high.
01:42:30.660
You even see this a little bit with kind of consumption of energy drinks, like people
01:42:36.980
are taking more and more chemicals within their energy drinks and they're thinking about
01:42:40.440
loud, fast music, energy drinks, it's kind of stacking of dopaminergic tools.
01:42:46.680
In fact, I'm, I'm, there are some energy drinks I'll occasionally drink and I enjoy them.
01:42:50.800
I don't think we need to be entirely afraid of, of pursuing or engaging in things that release
01:42:56.080
dopamine, obviously healthy sexual behavior, food that we love, social engagement, all
01:43:02.960
It's the big peaks in dopamine that are not associated with any prior effort or organization
01:43:08.480
of self that are particularly dangerous for the human being.
01:43:12.540
Well, you could see that, that you could see that, that that's a cardinal danger of, of
01:43:18.940
This is why the children of, you know, you know, that's right.
01:43:21.420
You know, you cannot get rats addicted to cocaine if they live in their natural environments.
01:43:26.920
You can only get rats addicted to cocaine if they're isolated rats in a cage.
01:43:32.640
They won't bar press for cocaine in the natural environment.
01:43:35.100
And it's because they have alternative sources of dopaminergic gratification.
01:43:41.760
The children of very wealthy people who are overindulged.
01:43:45.240
I've seen that many times, many, many times, and it is a very sad sight.
01:43:49.860
Um, yeah, well, they're not optimally deprived, eh?
01:43:53.240
And that, that issue of optimal deprivation, that's, that's a killer issue for an affluent
01:43:58.220
We're going to have to stop because it's been more than an hour and a half.
01:44:03.540
And I don't want to stop because there were a bunch of things I wanted to talk to you about.
01:44:06.860
I wanted to talk to you about, and I should let everybody know who's listening.
01:44:10.000
If you go to Dr. Huberman's podcast, you can hear him discuss some of these things.
01:44:14.700
We were going to talk about dreams, sleep, rest, and learning, because we didn't talk
01:44:19.320
about the relationship between dreams and learning and reinforcement, which I'd love
01:44:26.500
We didn't talk about physical health, aging, and how to ameliorate it.
01:44:32.480
We didn't talk about flexibility, and we didn't talk about gratitude.
01:44:35.700
So I would say we should probably do another podcast at some point.
01:44:39.120
I would also tell everyone who's watching and listening that Dr. Huberman invited me onto
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And so some of these things we can discuss when that happens, because I would like to
01:44:54.200
I would also tell people, I'm going to do another half an hour with Dr. Huberman on the
01:44:59.880
I use that time to investigate a little bit people's success stories, I suppose.
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I think it's very useful for young people in particular to get exposed to individuals who've carved
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out success, at least in some domains of their life, and to find out what the story pathways
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are, let's say, the autobiographical pathways that facilitate that kind of success.
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I would encourage you to continue listening to my conversation with my guest on dailywireplus.com.