Oliver Sacks at TED2009

  • Speaking at TED2009
  • February 2009
  • Long Beach, CA

What hallucination reveals about our minds: Neurologist and author Oliver Sacks brings our attention to Charles Bonnett 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.

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