Eric Mead: The magic of the placebo

255,556 views ・ 2010-03-12

TED


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00:18
For some time I have been interested in
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the placebo effect,
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which might seem like an odd thing
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for a magician to be interested in,
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unless you think of it in the terms that I do,
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which is, "Something fake
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is believed in enough by somebody
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that it becomes something real."
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In other words, sugar pills
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have a measurable effect in certain kinds of studies,
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the placebo effect,
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just because the person thinks
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that what's happening to them is a pharmaceutical
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or some sort of a --
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for pain management, for example,
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if they believe it enough there is a measurable effect in the body
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called the placebo effect.
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Something fake becomes
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something real
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01:01
because of someone's perception of it.
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In order for us to understand each other,
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I want to start by showing you a rudimentary,
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very simple magic trick.
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01:10
And I'm going to show you how it works. This is a trick
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that's been in every children's magic book since at least the 1950s.
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01:16
I learned it myself from Cub Scout Magic in the 1970s.
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I'll do it for you, and then I'll explain it.
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And then I'll explain why I explained it.
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So, here's what happens.
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The knife, which you can examine; my hand, which you could examine.
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I'm just going to hold the knife in my fist like this.
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01:32
I'll get my sleeve back.
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And to make sure nothing goes up or down my sleeve
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I'm just going to squeeze my wrist right here.
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That way you can see that at no time
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can anything travel, as long as I'm squeezing there
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nothing can go up or down my sleeve.
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And the object of this is quite simple.
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I'm going to open my hand,
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and hopefully, if all is well,
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my pure animal magnetism will hold the knife.
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In fact it's held so tightly in place
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that I can shake it,
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and the knife does not come off.
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Nothing goes up or down my sleeve,
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no trickery. And you can examine everything.
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02:09
Ta-da!
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02:11
(Applause)
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02:13
So, this is a trick that I often teach to young children
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that are interested in magic, because you can learn
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02:18
a great deal about deception by studying
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this very -- even though it's a very simple trick methodologically.
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02:23
Probably many of you in the room know this trick.
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What happens is this.
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I hold the knife in my hand.
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I say I'm going to grab hold of my wrist
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to make sure nothing goes up or down my sleeve,
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that is a lie.
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The reason I'm holding onto my wrist
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is because that's actually the secret
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of the illusion.
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In a moment when my hand moves from facing you
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to being away from you,
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this finger right here, my index finger is just going to shift
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from where it is, to a position
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pointing out like this.
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Nice one.
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Someone who didn't have a childhood is out there.
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02:57
(Laughter)
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So, it goes like this, from here, right.
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And as I move around my finger shifts.
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And we could talk about why this is deceptive,
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why you don't notice there are only three fingers down here,
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because the mind, and the way it processes information,
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it doesn't count, one, two, three. It groups them.
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03:13
But that's not really what this is about. Right? And then I open my hand up.
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Obviously it's clinging there, not by animal magnetism,
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but by chicanery,
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my index finger being there.
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And then when I close my finger, same thing,
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as I move back, this motion
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kind of covers the moving back of my finger.
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I take this hand away. You give the knife out.
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03:32
There is a trick you can do for your friends and neighbors. Thanks.
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Now, (Laughter)
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what does that have to do with the placebo effect?
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I read a study a year or so ago
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that really blew my mind wide open.
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I'm not a doctor or a researcher, so this, to me,
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was an astonishing thing.
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It turns out that if you administer
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a placebo in the form of a white pill,
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that's like aspirin shaped --
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it's just a round white pill -- it has some certain measurable effect.
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04:01
But if you change the form that you give the placebo in,
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like you make a smaller pill,
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and color it blue, and stamp a letter into it,
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it is actually measurably more effective.
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04:12
Even though neither one of these things
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has any pharmaceutical -- they're sugar pills.
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04:17
But a white pill is not as good as a blue pill.
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04:21
What? (Laughter) That really flipped me out.
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04:24
Turns out though, that that's not even where it stops.
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04:26
If you have capsules,
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they're more effective than tablets in any form.
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A colored capsule, that's yellow on one end and red on the other
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is better than a white capsule.
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Dosage has something to do with this.
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One pill twice a day
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is not as good at three pills --
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I don't remember the statistic now. Sorry.
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But the point is ...
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(Laughter) ... these dosages have something to do with it.
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And the form has something to do with it.
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04:51
And if you want the ultimate in placebo,
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you've go to the needle.
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Right? A syringe with some inert --
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a couple CCs of some inert something,
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and you inject this into a patient ...
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Well this is such a powerful image in their mind,
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it's so much stronger than the white pill.
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05:07
It's a really, this graph, well I'll show it to you
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some other time when we have slides.
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05:12
The point is
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the white pill is not as good as the blue pill
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05:17
is not as good as the capsule is not as good as the needle.
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05:20
And none of it has any real pharmaceutical quality,
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05:23
it's only your belief that makes it real
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in your body and makes a stronger effect.
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05:30
I wanted to see if I could take that idea
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and apply it to a magic trick.
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And take something that is obviously a fake trick
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and make it seem real.
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And we know from that study
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that when you want reality, you go to the needle.
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This is a seven-inch hatpin. It's very, very sharp,
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and I'm going to just sterilize it a tiny bit.
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06:01
This is really my flesh. This is not
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Damian's special-grown flesh.
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That's my skin right there. This is not a Hollywood special effect.
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I'm going to pierce my skin
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and run this needle through to the other side.
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If you're queasy -- (Laughs)
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if you faint easily -- I was doing this for some friends
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in the hotel room last night, and some people that I didn't know,
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and one woman almost passed out.
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So, I suggest if you get queasy easy
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that you look away for about the next 30 --
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in fact, you know what, I'll do the first bad part behind it.
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You'll get to see, you can look away too if you'd like to.
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So, here is what happens, right here,
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the beginning of my flesh
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at the lower part of my arm I just make
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a little pierce.
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I'm sorry, man. Am I freaking you out?
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OK, and then just through my skin a tiny bit,
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and then out the other side like this.
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Now, essentially we're in the same position we were in
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with the knife trick.
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(Laughter)
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07:02
Sort of.
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But you can't count my fingers right now can you?
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07:07
So, let me show them to you. That's one, two
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three, four, five.
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07:12
Yes, well...
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I know what people think when they see this.
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They go, "Well, he's certainly not dumb enough
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to stab himself through the skin to entertain us for a few minutes.
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So, let me give you a little peek.
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How's that look out there? Pretty good.
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(Laughs)
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Yeah, I know. (Laughs)
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And the people in the back go, "OK, I didn't really see that."
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People in the satellite room are starting to move in now.
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Let me give you good close look at this.
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That really is my skin. That is not a Hollywood special effect.
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That's my flesh, and I can twist that around.
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I'm sorry. If you're getting queasy, look away,
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don't look at the thing.
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People in the back or people on video years from now watching this
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will go, "Well yeah, that looks kind of neat
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in some sort of effect there, but if it were real he would be --
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see there's a hole there and a hole there, if it were real he would be bleeding.
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Well let me work up some blood for you.
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(Laughter)
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Yes, there it is.
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08:11
(Applause)
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08:27
(Laughter)
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Normally now, I would take the needle out.
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I would clean off my arm, and I would show you that there are no wounds.
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But I think in this context
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and with the idea of taking something fake
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and making it into something real,
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I'm just going to leave it there,
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and walk off the stage.
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08:48
(Laughter)
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I will be seeing you several times over the next few days.
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I hope you're looking forward to that. Thank you very much.
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08:56
(Laughter)
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08:58
(Applause)
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