HALLUCINATION

Hallucination

A hallucination is a perception in the absence of apparent stimulus which has qualities of real perception. Hallucinations are vivid, substantial, and located in external objective space. They are distinguished from the related phenomena of dreaming, which does not involve wakefulness; illusion, which involves distorted or misinterpreted real perception; imagery, which does not mimic real perception and is under voluntary control; and pseudohallucination, which does not mimic real perception, but is not under voluntary control.

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hallucination

Noun

  1. A sensory perception of something that does not exist, often arising from disorder of the nervous system, as in delirium tremens; a delusion.
    • Hallucinations are always evidence of cerebral derangement and are common phenomena of insanity. - W. A. Hammond
  2. The act of hallucinating; a wandering of the mind; an error, mistake or blunder.
    • This must have been the hallucination of the transcriber. -


The above text is a snippet from Wiktionary: hallucination
and as such is available under the Creative Commons Attribution/Share-Alike License.

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