![]() | This category reflects the organization of International Statistical Classification of Diseases and Related Health Problems, 11th Revision. Generally, diseases outlined within the ICD-11 codes MB27.20-MB27.2Z within Symptoms, signs or clinical findings, not elsewhere classified should be included in this category. |
Articles relating to hallucinations, perceptions in the absence of an external stimulus that have the qualities of real perceptions. Hallucinations are vivid, substantial, and are perceived to be located in external objective space. Hallucinations are a combination of 2 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 accurately perceived as unreal; illusion, which involves distorted or misinterpreted real perception; and mental imagery, which does not mimic real perception, and is under voluntary control. Hallucinations also differ from "delusional perceptions", in which a correctly sensed and interpreted stimulus (i.e., a real perception) is given some additional significance. Many hallucinations happen also during sleep paralyses.
Subcategories
This category has the following 2 subcategories, out of 2 total.
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Pages in category "Hallucinations"
The following 50 pages are in this category, out of 50 total. This list may not reflect recent changes.