From TED's website:
About this talk
First, Keith Barry shows us how our brains can fool our bodies -- in a trick that works via podcast too. Then he involves the audience in some jaw-dropping (and even a bit dangerous) feats of brain magic.
About Keith Barry
Think of Keith Barry as a hacker of the human brain -- writing routines that exploit its bugs and loopholes, and offering a revealing look at the software between our ears.