Greg Gage: How to control someone else's arm with your brain
Greg Gage: Comment contrôler le bras d'autrui avec son esprit
TED Fellow Greg Gage helps kids investigate the neuroscience in their own backyards. Full bio
Double-click the English transcript below to play the video.
fascinant et complexe.
sont fascinés par le cerveau,
are fascinated by the brain,
ses propriétés
about how the brain works
la neuroscience à l'école.
neuroscience in schools.
why is that the equipment
sont si complexes et chers
que dans les meilleures universités
universities and large institutions.
to access the brain,
vous concentrer sur le cerveau,
as a graduate student
to get access to these tools.
et avoir accès à ces machines.
because one out of five of us,
car une personne sur cinq,
will have a neurological disorder.
souffrira des troubles neurologiques.
for these diseases.
pour ces maladies.
what we should be doing
dans le cursus scolaire
in the eduction process
so that in the future,
pour que dans le futur,
becoming a brain scientist.
des spécialistes du cerveau.
avec mon ami de laboratoire Tim Marzullo,
my lab mate Tim Marzullo and myself,
this complex equipment that we have
cet équipement complexe
enough and affordable enough
suffisamment simple et abordable
or a high school student,
amateurs ou lycéens,
in the discovery of neuroscience.
aux découvertes des neurosciences.
a company called Backyard Brains
la société « Backyard Brains ».
and I brought some here tonight,
pour les neurosciences.
pour une démonstration.
(Applause)
(Applaudissements)
to record from your brain.
your arm for science,
I'm putting electrodes on your arm,
des électrodes sur votre bras.
brain, what am I doing with your arm?
de votre cerveau avec votre bras.
de neurones dans votre cerveau.
inside your brain right now.
back and forth, and chemical messages.
des signaux électriques et chimiques.
right here in your motor cortex
dans votre cortex moteur,
when you move your arm like this.
quand vous bougez votre bras.
across your corpus callosum,
les neurones moteur inférieurs,
to your lower motor neuron
is going to be picked up
la décharge électrique de ce signal.
ce que votre cerveau va faire.
is going to be doing.
SK : Non.
what your brain sounds like?
Serrez le poing.
So go ahead and squeeze your hand.
happening right here.
that are happening
jusqu'au muscle ici.
out to her muscle right here,
that's happening here.
on peut isoler un seul signal.
and try to see one of them.
happening right now inside of your brain.
qui vient de se produire dans le cerveau.
but let's get it better.
dans vos muscles.
down to your muscles right here.
a signal down to your muscles.
un signal à vos muscles.
a nerve that's right here
these three fingers,
that we might be able
going out to your hand
par le cerveau de Sam
when your brain tells your hand to move.
avec le signal cérébral de Sam.
your free will
votre libre-arbitre.
any control over this hand.
aucun contrôle sur votre main.
dans quoi vous embarquez
and we're going to plug it in
l'interface humain-à-humain.
to squeeze your hand again.
serrer le poing à nouveau ?
over here so that you get the --
a little bit weird at first,
(Laughter)
and someone else becomes your agent,
et que quelqu'un vous contrôle,
so go ahead and give it a squeeze.
Allez-y sans crainte : serrez !
and turn your hand.
Sam, allez-y, tournez votre main.
MG: Nope.
MG : Non.
MG: A little bit.
MG : Un peu.
(Rires)
and it's also controlling his arm,
et contrôle également son bras,
(Rires)
if I took over my control of your hand?
le contrôle de votre main, Sam ?
qui doit le faire.
such a good sport.
all across the world --
the neuro-revolution.
ABOUT THE SPEAKER
Greg Gage - NeuroscientistTED Fellow Greg Gage helps kids investigate the neuroscience in their own backyards.
Why you should listen
As half of Backyard Brains, neuroscientist and engineer Greg Gage builds the SpikerBox -- a small rig that helps kids understand the electrical impulses that control the nervous system. He's passionate about helping students understand (viscerally) how our brains and our neurons work, because, as he said onstage at TED2012, we still know very little about how the brain works -- and we need to start inspiring kids early to want to know more.
Before becoming a neuroscientist, Gage worked as an electrical engineer making touchscreens. As he told the Huffington Post: "Scientific equipment in general is pretty expensive, but it's silly because before [getting my PhD in neuroscience] I was an electrical engineer, and you could see that you could make it yourself. So we started as a way to have fun, to show off to our colleagues, but we were also going into classrooms around that time and we thought, wouldn't it be cool if you could bring these gadgets with us so the stuff we were doing in advanced Ph.D. programs in neuroscience, you could also do in fifth grade?" His latest pieces of gear: the Roboroach, a cockroach fitted with an electric backpack that makes it turn on command, and BYB SmartScope, a smartphone-powered microscope.
Greg Gage | Speaker | TED.com