Questions tagged [hallucinations]

For questions regarding perception of a stimulus without any actual stimulus being present, particularly in the context of psychiatric illness or recreational drug use

For questions regarding perception of a stimulus without any actual stimulus being present, particularly in the context of psychiatric illness or recreational drug use.

For more information, see Hallucinations.

See also and .

30 questions
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Why does sensory deprivation cause hallucinations?

John C. Lilly performed the seminal experiment about sensory deprivation. The author isolated people in a sensory deprivation tank and they reported having experienced hallucinations. Richard Feyman reported about his own experiences with…
Quora Feans
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Does a true hallucination need to go away while plugging one's ears?

Can an auditory hallucination be true hallucination even if the person clàims that it doesnot reduces in volume when he plugs his ears. Similarly can a visual hallucination still be a true hallucination even when it doesn't disappear when person…
Zuhaib Ali
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What type of imagination is responsible for hallucinations?

What about the type of imagination which medicine calls hallucinations? Is it a great gift or a curse for those who sense extremely? Is imagination a mild form of hallucinating?
Lady Fickle
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