Hallucinations, for most people, imply madness. But there are many different types of non-psychotic hallucination caused by various illnesses or injuries, by intoxication--even, for many people, by falling sleep. From the elementary geometrical shapes that we see when we rub our eyes to the complex swirls and blind spots and zigzags of a visual migraine, hallucination takes many forms. At a higher level, hallucinations associated with the altered states of consciousness that may come with sensory deprivation or certain brain disorders can lead to religious epiphanies or conversions. Drawing on a wealth of clinical examples from his own patients as well as historical and literary descriptions, Oliver Sacks investigates the fundamental differences and similarities of these many sorts of hallucinations, what they say about the organization and structure of our brains, how they have influenced every culture's folklore and art, and why the potential for hallucination is present in us all.
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LibraryThing ReviewUser Review - bness2 - LibraryThing
I pretty routinely love Sacks' books, and this one is no exception. Even though I myself have had no hallucinations, induced or otherwise, I have always been fascinated with the topic. I do have lucid ... Read full review
LibraryThing ReviewUser Review - SheilaDeeth - LibraryThing
I’d always imagined hallucinations were dangerous, scary and rare; nothing like those tricks of imagination and under-stimulated hearing on a silent night. A voice says your name when nobody’s there ... Read full review
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