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Oliver Sacks, 'Hallucinations'

21 Sep 2009

Speakers: Oliver Sacks

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Neurologist and author Oliver Sacks examines how the normal brain, if deprived of perceptual input, may generate illusory sensations - as with the visual hallucinations of the blind, or the musical hallucinations of the deaf.

This video was kindly provided by The New York Public Library

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