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A light switch for neurons - Ed Boyden

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TED Talk

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Ed Boyden shows how, by inserting genes for light-sensitive proteins into brain cells, he can selectively activate or de-activate specific neurons with fiber-optic implants. With this unprecedented level of control, he's managed to cure mice of analogs of PTSD and certain forms of blindness. On the horizon: neural prosthetics. Session host Juan Enriquez leads a brief post-talk Q&A.

What are some things that cause you to have an emotional reaction? Why do you think your brain has been triggered in such a way?

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