Ami Klin: A new way to diagnose autism

22,135 views ・ 2015-07-15

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Translator: Joseph Geni Reviewer: Morton Bast
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I always wanted to become a walking laboratory of social engagement:
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to resonate other people's feelings, thoughts, intentions, motivations,
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in the act of being with them.
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As a scientist, I always wanted to measure that resonance,
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that sense of the other that happens so quickly,
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in the blink of an eye.
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We intuit other people's feelings;
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we know the meaning of their actions even before they happen.
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We're always in this stance
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of being the object of somebody else's subjectivity.
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We do that all the time. We just can't shake it off.
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It's so important that the very tools we use to understand ourselves,
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to understand the world around us,
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are shaped by that stance.
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We are social to the core.
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So my journey in autism really started
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when I lived in a residential unit for adults with autism.
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Most of those individuals had spent most of their lives
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in long-stay hospitals.
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This is a long time ago.
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And for them, autism was devastating.
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They had profound intellectual disabilities.
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They didn't talk.
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But most of all,
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they were extraordinarily isolated from the world around them,
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from their environment
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and from the people.
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In fact, at the time, if you walked into a school
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for individuals with autism,
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you'd hear a lot of noise,
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plenty of commotion, actions, people doing things.
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But they're always doing things by themselves.
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So they may be looking at a light in the ceiling,
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or they may be isolated in the corner,
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or they might be engaged in these repetitive movements,
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in self-stimulatory movements that led them nowhere.
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Extremely, extremely isolated.
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Well, now we know that autism is this disruption,
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the disruption of this resonance that I am telling you about.
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These are survival skills.
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These are survival skills that we inherited
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over many, many hundreds of thousands of years of evolution.
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You see, babies are born in a state of utter fragility.
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Without the caregiver, they wouldn't survive,
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so it stands to reason that nature would endow them
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with these mechanisms of survival.
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They orient to the caregiver.
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From the first days and weeks of life,
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babies prefer to hear human sounds,
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rather than just sounds in the environment.
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They prefer to look at people rather than at things,
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and even as they're looking at people, they look at people's eyes,
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because the eye is the window to the other person's experiences,
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so much so that they even prefer to look at people
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who are looking at them rather than people who are looking away.
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Well, they orient to the caregiver.
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The caregiver seeks the baby.
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And it's out of this mutually reinforcing choreography
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that a lot that is of importance to the emergence of mind --
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the social mind, the social brain -- depends on.
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We always think about autism
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as something that happens later on in life.
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It doesn't; it begins with the beginning of life.
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As babies engage with caregivers, they soon realize that, well,
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there is something between the ears that is very important --
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it's invisible, you can't see it, but it's really critical.
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And that thing is called attention.
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And they learn soon enough,
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even before they can utter one word,
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that they can take that attention and move somewhere
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in order to get things they want.
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They also learn to follow other people's gazes,
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because whatever people are looking at is what they are thinking about.
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And soon enough, they start to learn about the meaning of things,
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because when somebody is looking at something
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or somebody is pointing at something,
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they're not just getting a directional cue.
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They are getting the other person's meaning of that thing,
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the attitude.
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And soon enough, they start building this body of meanings,
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but meanings that were acquired within the realm of social interaction.
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Those are meanings that are acquired
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as part of their shared experiences with others.
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Well, this is a 15-month-old little girl,
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and she has autism.
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And I am coming so close to her that I am maybe two inches from her face,
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and she's quite oblivious to me.
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Imagine if I did that to you, came two inches from your face.
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You'd do probably two things, wouldn't you?
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You would recoil. You would call the police.
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(Laughter)
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You would do something,
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because it's literally impossible to penetrate somebody's physical space
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and not get that reaction.
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We do so, remember, intuitively, effortlessly.
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This is our body wisdom;
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it's not something mediated by our language.
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Our body just knows that.
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And we've known that for a long time.
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And this is not something that happens to humans only.
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It happens to some of our phyletic cousins,
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because if you're a monkey, and you look at another monkey,
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and that monkey has a higher hierarchy position than you,
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and that is considered to be a signal or threat,
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well, you are not going to be alive for long.
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So something that in other species are survival mechanisms,
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without which they wouldn't basically live,
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we bring into the context of human beings,
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and this is what we need to simply act, socially.
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Now, she is oblivious to me and I'm so close to her,
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and you think, maybe she can see you,
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maybe she can hear you.
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Well, a few minutes later,
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she goes to the corner of the room,
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and she finds a tiny little piece of candy, an M&M.
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So I could not attract her attention,
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but something -- a thing -- did.
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Now, most of us make a big dichotomy
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between the world of things and the world of people.
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Now, for this girl, that division line is not so clear,
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and the world of people is not attracting her
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as much as we would like.
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Now, remember that we learn a great deal by sharing experiences.
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What she is doing right now is that her path of learning is diverging,
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moment by moment,
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as she is isolating herself further and further.
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So we feel sometimes that the brain is deterministic,
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the brain determines who we're going to be.
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But, in fact, the brain also becomes who we are,
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and at the same time that her behaviors are taking away
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from the realm of social interaction,
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this is what's happening with her mind,
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and this is what's happening with her brain.
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Well, autism is the most strongly genetic condition
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of all developmental disorders.
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And it's a brain disorder.
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It's a disorder that begins much prior to the time
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that the child is born.
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We now know that there is a very broad spectrum of autism.
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There are those individuals who are profoundly intellectually disabled
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but there are those that are gifted.
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There are those individuals who don't talk at all;
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there are those individuals who talk too much.
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There are those individuals that if you observe them in their school,
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you see them running the periphery fence all the school day if you let them,
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to those individuals who cannot stop coming to you
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and trying to engage you repeatedly, relentlessly,
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but often in an awkward fashion,
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without that immediate resonance.
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Well, this is much more prevalent than we thought at the time.
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When I started in this field,
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we thought there were four individuals with autism per 10,000 --
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a very rare condition.
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Well, now we know it's more like one in 100.
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There are millions of individuals with autism all around us.
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The societal cost of this condition is huge,
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in the US alone, maybe 35 to 80 billion dollars.
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And you know what?
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Most of those funds are associated with adolescents and particularly adults
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who are severely disabled,
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individuals who need wraparound services --
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services that are very, very intensive.
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And those services can cost in excess of 60,000 to 80,000 dollars a year.
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Those are individuals who did not benefit from early treatment,
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because now we know that autism creates itself
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as individuals diverge in that pathway of learning that I mentioned to you.
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Were we to be able to identify this condition
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at an earlier point, and intervene and treat --
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I can tell you, this has been probably something that has changed my life
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in the past 10 years,
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this notion that we can absolutely attenuate this condition.
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Also, we have a window of opportunity,
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because the brain is malleable for just so long,
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and that window of opportunity happens in the first three years of life.
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It's not that that window closes; it doesn't.
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But it diminishes considerably.
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And yet, the median age of diagnosis in this country
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is still about five years,
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and in disadvantaged populations,
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the populations that don't have access to clinical services,
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rural populations, minorities,
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the age of diagnosis is later still,
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which is almost as if I were to tell you
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that we are condemning those communities to have individuals with autism
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whose condition is going to be more severe.
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So I feel that we have a bioethical imperative.
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The science is there.
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But no science is of relevance
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if it doesn't have an impact on the community.
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And we just can't afford that missed opportunity,
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because children with autism become adults with autism.
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And we feel that those things we can do
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for these children, for those families, early on,
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will have lifetime consequences --
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for the child, for the family, and for the community at large.
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So this is our view of autism.
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There are over a hundred genes that are associated with autism.
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In fact, we believe there are going to be
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something between 300 and 600 genes associated with autism,
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and genetic anomalies, much more than just genes.
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And we actually have a bit of a question here,
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because if there are so many different causes of autism,
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how do you go from those liabilities to the actual syndrome?
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Because people like myself,
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when we walk into a playroom,
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we recognize a child as having autism.
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So how do you go from multiple causes
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to a syndrome that has some homogeneity?
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And the answer is what lies in between,
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which is development.
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And in fact, we are very interested in those first two years of life,
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because those liabilities don't necessarily convert into autism.
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Autism creates itself.
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Were we to be able to intervene during those years of life,
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we might attenuate for some, and God knows, maybe even prevent for others.
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So how do we do that?
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How do we enter that feeling of resonance,
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how do we enter another person's being?
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I remember when I interacted with that 15-month-old,
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the thing that came to my mind was,
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"How do you come into her world?
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Is she thinking about me? Is she thinking about others?"
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Well, it's hard to do that,
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so we had to create the technologies.
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We had to basically step inside a body.
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We had to see the world through her eyes.
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And so in the past many years,
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we've been building these new technologies
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that are based on eye tracking.
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We can see, moment by moment, what children are engaging with.
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This is my colleague, Warren Jones,
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with whom we've been building these methods, these studies,
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for the past 12 years.
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And you see there a happy five-month-old,
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a five-month little boy who is going to watch things
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that are brought from his world:
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his mom, the caregiver,
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but also experiences that he would have were he to be in his daycare.
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What we want is to embrace that world and bring it into our laboratory,
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but in order for us to do that,
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we had to create these very sophisticated measures,
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measures of how people, how little babies,
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how newborns, engage with the world, moment by moment.
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What is important and what is not.
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Well, we created those measures,
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and here, what you see is what we call a funnel of attention.
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You're watching a video --
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those frames are separated by about a second --
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through the eyes of 35 typically developing two-year-olds.
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And we freeze one frame,
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and this is what the typical children are doing.
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In this scan pass, in green here, are two-year-olds with autism.
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So on that frame, the children who are typical are watching this,
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the emotion of expression of that little boy
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as he's fighting a little bit with the little girl.
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What are the children with autism doing?
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They are focusing on the revolving door,
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opening and shutting.
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Well, I can tell you that this divergence that you're seeing here
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doesn't happen only in our five-minute experiment.
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It happens moment by moment in their real lives,
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and their minds are being formed and their brains are being specialized
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in something other than what is happening with their typical peers.
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Well, we took a construct from our pediatrician friends,
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the concept of growth charts --
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you know, when you take a child to the pediatrician,
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and you have physical height and weight.
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Well, we decided we were going to create growth charts
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of social engagement.
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We sought children from the time they're born.
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What you see here on the x-axis
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is two, three, four, five, six months and nine,
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until about the age of 24 months.
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This is the percent of their viewing time
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that they're focusing on people's eyes,
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and this is their growth chart.
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They start over here -- they love people's eyes --
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and it remains quite stable.
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It sort of goes up a little bit in those initial months.
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Now, let's see what's happening with babies who became autistic.
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It's something very different.
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It starts way up here, but then it's a free fall.
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It's very much like they brought into this world the reflex
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that orients them to people, but it has no traction.
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It's almost as if that stimulus -- you --
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you're not exerting influence on what happens
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as they navigate their daily lives.
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Now, we thought those data were so powerful, in a way,
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that we wanted to see what happened in the first six months of life,
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because if you interact with a two- and a three-month-old,
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you'd be surprised by how social those babies are.
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And what we see in the first six months of life
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is that those two groups can be segregated very easily.
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And using these kinds of measures and many others,
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what we found out is that our science could, in fact,
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identify this condition early on.
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We didn't have to wait for the behaviors of autism
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to emerge in the second year of life.
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If we measured things that are, evolutionarily, highly conserved,
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and developmentally very early-emerging --
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things that are online from the first weeks of life --
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we could push the detection of autism
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all the way to those first months,
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and that's what we are doing now.
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Now, we can create the very best technologies
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and the very best methods to identify the children,
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but this would be for naught if we didn't have an impact
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16:58
on what happens in their reality in the community.
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Now we want those devices, of course,
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to be deployed by those who are in the trenches --
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our colleagues, the primary care physicians, who see every child --
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and we need to transform those technologies
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into something that is going to add value to their practice,
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because they have to see so many children.
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And we want to do that universally so that we don't miss any child.
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But this would be immoral
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if we also did not have an infrastructure for intervention, for treatment.
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We need to be able to work with the families, support the families,
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to manage those first years with them.
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We need to be able to really go
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from universal screening to universal access to treatment,
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because those treatments are going to change
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these children's and those families' lives.
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Now, when we think about what we [can] do in those first years,
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I can tell you, having been in this field for so long,
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one feels really rejuvenated.
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There is a sense that the science that one worked on
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can actually have an impact on realities,
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preventing, in fact, those experiences
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that I really started in my journey in this field.
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I thought at the time that this was an intractable condition.
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No longer. We can do a great deal of things.
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And the idea is not to cure autism.
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That's not the idea.
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What we want is to make sure
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that those individuals with autism can be free
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from the devastating consequences that come with it at times,
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the profound intellectual disabilities, the lack of language,
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the profound, profound isolation.
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We feel that individuals with autism, in fact,
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have a very special perspective on the world,
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and we need diversity.
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And they can work extremely well in some areas of strength:
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predictable situations, situations that can be defined.
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Because after all, they learn about the world
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almost, like, about it,
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rather than learning how to function in it.
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But this is a strength if you're working, for example, in technology.
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And there are those individuals who have incredible artistic abilities.
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We want them to be free to do that.
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We want that the next generations of individuals with autism
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will be able not only to express their strengths,
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but to fulfill their promise.
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Well, thank you for listening to me.
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(Applause)
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