TED Talk: What hallucinations reveals about our mind

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.
joe2says...

i like his books and he's obviously brilliant but this speech was a bit boring. the brief parts about brain function were good but most of it was detailed and uninteresting descriptions of a few hallucinations. by 13:00 i was struggling to pay attention

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