Oliver Sacks: What hallucination reveals about our minds

Oliver Sacks, one of the foremost leaders in the popularisation of the intricate workings of the brain. In this TED talk he speaks of how hallucinations give us an insight into the weird and wonderful way the brain responds to the deterioration of visual and audio stimulus, with the main focus being on a condition called Charles Bonnet syndrome, a condition where visually impaired people can experience particularly strong and vivid...

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