Edith Widder: The weird and wonderful world of bioluminescence

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http://www.ted.com In the deep, dark ocean, many sea creatures make their own light for hunting, mating and self-defense. Bioluminescence expert Edith Widder was one of the first to film this glimmering world. At TED2011, she brings some of her glowing friends onstage, and shows more astonishing footage of glowing undersea life.... Read More إقرأ المزيد | Share it now!

Elliot Krane: The mystery of chronic pain

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http://www.ted.com We think of pain as a symptom, but there are cases where the nervous system develops feedback loops and pain becomes a terrifying disease in itself. Starting with the story of a girl whose sprained wrist turned into a nightmare, Elliot Krane talks about the complex mystery of chronic pain, and reviews the facts we’re just learning about how it works and how to treat it.... Read More إقرأ المزيد | Share it now!

Ed Boyden: A light switch for neurons

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http://www.ted.com 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.... Read More إقرأ المزيد | Share it now!