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- Dictionaryhallucination/həˌluːsɪˈneɪʃ(ə)n/
noun
- 1. an experience involving the apparent perception of something not present: "he continued to suffer from horrific hallucinations"
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noun
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Perception in the presence of no external stimuli found, but characteristic of true perception
A hallucination is a perception in the absence of an external stimulus that has the compelling sense of reality. Hallucination is a combination of two conscious states of brain: wakefulness and REM sleep. They are distinguishable from several related phenomena, such as dreaming (REM sleep), which does not involve wakefulness; pseudohallucination, which does not mimic real perception, and is accura... Wikipedia