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hallucination

Also known as hallucinations, hearing voice

A hallucination is a perception in the absence of an external context stimulus that has the compelling sense of reality. 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 interpre

AI overview

A hallucination is when you perceive something—like seeing, hearing, or feeling something—that isn't actually there, and it feels completely real to you, which sets it apart from dreams, imagination, or misinterpreting something you actually see. Understanding hallucinations matters because they can be a sign of medical or psychological conditions that need attention, and distinguishing them from other similar experiences helps doctors and patients identify what's really going on.

AI-generated from the Wikipedia summary — may contain errors.

Key facts

Medical condition (new).causes: Hypnagogia, Peduncular hallucinosis, Delirium tremens, Parkinson's disease, Delusion, Lewy body dementia, Charles Bonnet syndrome, hallucinogens, sensory deprivation, schizophrenia, psychedelics, sleep paralysis, drug intoxication or withdrawal, sleep deprivation, epilepsy, psychological stress, rabies, non-celiac gluten sensitivity, fever, covert weaponry
Medical condition (new).treatment: Cognitive behavioral therapy and metacognitive training
Medical condition (new).medication: Antipsychotic, AAP
Medical condition (new).name: Hallucination
Medical condition (new).image: August_Natterer_Meine_Augen_zur_Zeit_der_Erscheinungen.jpg
Medical condition (new).caption: My eyes at the moment of the apparitions by August Natterer, a German artist who created many drawings of his hallucinations
Medical condition (new).field: Psychiatry

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Research

24,523 papers

Striatal dopamine mediates hallucination-like perception in mice.Science (New York, N.Y.) · 2021Schmack K, Bosc M, Ott T et al.DOI: 10.1126/science.abf4740
The Effect of Music on Auditory Hallucination and Quality of Life in Schizophrenic Patients: A Randomised Controlled Trial.Issues in mental health nursing · 2019Ertekin Pinar S RN, PhD, Tel H RN, PhDDOI: 10.1080/01612840.2018.1463324
Hallucination Research: Into the Future, and Beyond.Schizophrenia bulletin · 2019Jardri R, Larøi F, Waters F et al.DOI: 10.1093/schbul/sby170
Nursing Process Addressing the Nursing Focus "Hallucination": A Scoping Review.Clinical nursing research · 2021Gonçalves PDB, Sampaio FMC, da Cruz Sequeira CA et al.DOI: 10.1177/1054773819877534
Arts-based methods for hallucination research.Cognitive neuropsychiatry · 2022Melvin K, Rollins CPE, Cromby J et al.DOI: 10.1080/13546805.2021.1993807
From depersonalization to hallucination.ReviewPsychopathology · 2012Graux J, Lemoine M, El Hage W et al.DOI: 10.1159/000325911
Is musical hallucination an otological phenomenon? a review of the literature.ReviewClinical otolaryngology : official journal of ENT-UK ; official journal of Netherlands Society for Oto-Rhino-Laryngology & Cervico-Facial Surgery · 2009Cope TE, Baguley DMDOI: 10.1111/j.1749-4486.2009.02013.x
Aberrant Hippocampal Neuroregenerative Plasticity in Schizophrenia: Reactive Neuroblastosis as a Possible Pathocellular Mechanism of Hallucination.ReviewNeuro-Signals · 2024Irakkam MPBD, Joseph JHM, Kandasamy MDOI: 10.33594/000000712

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Wikidata facts

Image: August Natterer Meine Augen zur Zeit der Erscheinungen.jpg

Show 3 more facts

Commons category: Hallucination
exact match: purl.obolibrary.org/obo/SYMP_0000607
NCI Thesaurus ID: C37961

Sources (8)

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~31 min read

Article

32 sections

Contents

Classification
Auditory
Visual
Command{{anchor|Command hallucination|Command hallucinations}}
Olfactory
Tactile
Gustatory
Sexual
Somatic
Multimodal
Cause
Hypnagogic hallucination
Peduncular hallucinosis
Delirium tremens
Parkinson's disease and Lewy body dementia
Migraine coma
Migraine attacks
Focal epilepsy
Drug-induced hallucination
Sensory deprivation hallucination
Charles Bonnet syndrome
Experimentally-induced hallucinations
Non-celiac gluten sensitivity
Pathophysiology
Dopaminergic and serotonergic hallucinations
Neuroanatomy
Treatments
Epidemiology
See also
References
Further reading
External links

Hallucinations can occur in any sensory modality—visual, auditory, olfactory, gustatory, tactile, proprioceptive, equilibrioceptive, nociceptive, thermoceptive and chronoceptive. Hallucinations are referred to as multimodal if multiple sensory modalities occur.