A form constant is one of several geometric patterns which are recurringly observed during hypnagogia, hallucinations and altered states of consciousness. == History == In 1926, Heinrich Klüver systematically studied the effects of mescaline (peyote) on the subjective experiences of its users.
A form constant is one of several geometric patterns which are recurringly observed during hypnagogia, hallucinations and altered states of consciousness. == History == In 1926, Heinrich Klüver systematically studied the effects of mescaline (peyote) on the subjective experiences of its users.
Source: Wikipedia "Form constant" · CC BY-SA 4.0
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