Christopher deCharms: A look inside the brain in real time

91,189 views ・ 2008-03-27

TED


Please double-click on the English subtitles below to play the video.

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Hi. I'm going to ask you to raise your arms and wave back,
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just the way I am -- kind of a royal wave.
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You can mimic what you can see.
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You can program the hundreds of muscles in your arm.
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Soon, you'll be able to look inside your brain and program,
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control the hundreds of brain areas that you see there.
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I'm going to tell you about that technology.
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People have wanted to look inside the human mind,
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the human brain, for thousands of years.
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Well, coming out of the research labs just now, for our generation, is the possibility to do that.
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People envision this as being very difficult.
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00:44
You had to take a spaceship, shrink it down, inject it into the bloodstream.
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It was terribly dangerous. (Laughter)
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You could be attacked by white blood cells in the arteries.
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But now, we have a real technology to do this.
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We're going to fly into my colleague Peter's brain.
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We're going to do it non-invasively using MRI.
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01:02
We don't have to inject anything. We don't need radiation.
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01:06
We will be able to fly into the anatomy of Peter's brain -- literally, fly into his body --
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01:11
but more importantly, we can look into his mind.
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01:13
When Peter moves his arm, that yellow spot you see there
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01:16
is the interface to the functioning of Peter's mind taking place.
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01:20
Now you've seen before that with electrodes you can control robotic arms,
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01:23
that brain imaging and scanners can show you the insides of brains.
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What's new is that that process has typically taken days or months of analysis.
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We've collapsed that through technology to milliseconds,
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and that allows us to let Peter to look at his brain in real time as he's inside the scanner.
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He can look at these 65,000 points of activation per second.
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If he can see this pattern in his own brain, he can learn how to control it.
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There have been three ways to try to impact the brain:
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the therapist's couch, pills and the knife.
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This is a fourth alternative that you are soon going to have.
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We all know that as we form thoughts, they form deep channels in our minds and in our brains.
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Chronic pain is an example. If you burn yourself, you pull your hand away.
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02:08
But if you're still in pain in six months' or six years' time,
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it's because these circuits are producing pain that's no longer helping you.
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If we can look at the activation in the brain that's producing the pain,
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we can form 3D models and watch in real time the brain process information,
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and then we can select the areas that produce the pain.
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02:27
So put your arms back up and flex your bicep.
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02:30
Now imagine that you will soon be able to look inside your brain
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and select brain areas to do that same thing.
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02:36
What you're seeing here is, we've selected the pathways in the brain of a chronic pain patient.
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02:40
This may shock you, but we're literally reading this person's brain in real time.
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They're watching their own brain activation,
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and they're controlling the pathway that produces their pain.
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They're learning to flex this system that releases their own endogenous opiates.
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As they do it, in the upper left is a display
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that's yoked to their brain activation of their own pain being controlled.
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When they control their brain, they can control their pain.
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This is an investigational technology,
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but, in clinical trials, we're seeing a 44 to 64 percent decrease in chronic pain patients.
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03:12
This is not "The Matrix." You can only do this to yourself. You take control.
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I've seen inside my brain. You will too, soon.
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03:21
When you do, what do you want to control?
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You will be able to look at all the aspects that make you yourself, all your experiences.
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These are some of the areas we're working on today that I don't have time to go into in detail.
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But I want to leave with you the big question.
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We are the first generation that's going to be able to enter into,
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using this technology, the human mind and brain.
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Where will we take it?
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