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Oliver Sacks:
What hallucination reveals about our minds

TED2009 · 18:48 · Filmed Feb 2009
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Neurologist and author Oliver Sacks brings our attention to Charles Bonnet syndrome — when visually impaired people experience lucid hallucinations. He describes the experiences of his patients in heartwarming detail and walks us through the biology of this under-reported phenomenon.

Neurological anthropologist
Since "Awakenings" stormed the bestseller lists (and the silver screen), Oliver Sacks has become an unlikely household name, single-handedly inventing the genre of neurological anthropology. Full bio
This talk was presented at an official TED conference, and was featured by our editors on the home page.

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