How/Why do sensory deprivation tanks cause hallucinations?
In: Biology
No one really knows. But it is a recognised phenomenon known as “prisoner’s cinema” or “trucker’s cinema”.
Basically in a dark place you will see lights with no source known as “phosphenes”, simply the cells and nerves in your eyes working.
With no external stimulus your mind holds on to these phosphenes and warps them into recognisable shapes like pictures and patterns as it tries to make sense of them, a phenomenon known as “pareidolia”.
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