| http://www.w3.org/ns/prov#value | - Or as Sacks himself writes, ???Here, then, is a sampling which I hope will give a sense of the great range, the varieties, of hallucinatory experience, an essential part of the human condition.??? In other words, hallucinations are not uniform and a study of them must allow for the pronounced differences of brain chemistry, psychological constitution, and cultural context of the individuals who ex
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