Prevalence of hallucinations and their pathological associations in the general population.
Identifieur interne : 000168 ( Ncbi/Curation ); précédent : 000167; suivant : 000169Prevalence of hallucinations and their pathological associations in the general population.
Auteurs : M M Ohayon [États-Unis]Source :
- Psychiatry research [ 0165-1781 ] ; 2000.
Descripteurs français
- Wicri :
- geographic : Allemagne, Italie, États-Unis.
English descriptors
- KwdEn :
- Adolescent, Adult, Aged, Aged, 80 and over, Circadian Rhythm (physiology), Female, Germany (epidemiology), Hallucinations (diagnosis), Hallucinations (epidemiology), Hallucinations (etiology), Humans, Italy (epidemiology), Male, Mental Disorders (epidemiology), Mental Disorders (psychology), Middle Aged, Neurocognitive Disorders (complications), Population Surveillance, Prevalence, Psychiatric Status Rating Scales, Sleep (physiology), United States (epidemiology).
- MESH :
- geographic , epidemiology : Germany, Italy, United States.
- complications : Neurocognitive Disorders.
- diagnosis : Hallucinations.
- epidemiology : Hallucinations, Mental Disorders.
- etiology : Hallucinations.
- physiology : Circadian Rhythm, Sleep.
- psychology : Mental Disorders.
- Adolescent, Adult, Aged, Aged, 80 and over, Female, Humans, Male, Middle Aged, Population Surveillance, Prevalence, Psychiatric Status Rating Scales.
Abstract
Hallucinations are perceptual phenomena involved in many fields of pathology. Although clinically widely explored, studies in the general population of these phenomena are scant. This issue was investigated using representative samples of the non-institutionalized general population of the United Kingdom, Germany and Italy aged 15 years or over (N=13,057). These surveys were conducted by telephone and explored mental disorders and hallucinations (visual, auditory, olfactory, haptic and gustatory hallucinations, out-of-body experiences, hypnagogic and hypnopompic hallucinations). Overall, 38.7% of the sample reported hallucinatory experiences (19.6% less than once in a month; 6.4% monthly; 2.7% once a week; and 2.4% more than once a week). These hallucinations occurred, (1) At sleep onset (hypnagogic hallucinations 24.8%) and/or upon awakening (hypnopompic hallucinations 6.6%), without relationship to a specific pathology in more than half of the cases; frightening hallucinations were more often the expression of sleep or mental disorders such as narcolepsy, OSAS or anxiety disorders. (2) During the daytime and reported by 27% of the sample: visual (prevalence of 3.2%) and auditory (0.6%) hallucinations were strongly related to a psychotic pathology (respective OR of 6.6 and 5.1 with a conservative estimate of the lifetime prevalence of psychotic disorders in this sample of 0.5%); and to anxiety (respective OR of 5.0 and 9.1). Haptic hallucinations were reported by 3.1% with current use of drugs as the highest risk factor (OR=9.8). In conclusion, the prevalence of hallucinations in the general population is not negligible. Daytime visual and auditory hallucinations are associated with a greater risk of psychiatric disorders. The other daytime sensory hallucinations are more related to an organic or a toxic disorder.
PubMed: 11166087
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<affiliation wicri:level="1"><nlm:affiliation>Sleep Disorders Center, Stanford University, School of Medicine, 401Quarry Road, Suite 3301, Stanford CA 94305, USA. mrcohayon@aol.com</nlm:affiliation>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>Sleep Disorders Center, Stanford University, School of Medicine, 401Quarry Road, Suite 3301, Stanford CA 94305</wicri:regionArea>
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<author><name sortKey="Ohayon, M M" sort="Ohayon, M M" uniqKey="Ohayon M" first="M M" last="Ohayon">M M Ohayon</name>
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<term>Adult</term>
<term>Aged</term>
<term>Aged, 80 and over</term>
<term>Circadian Rhythm (physiology)</term>
<term>Female</term>
<term>Germany (epidemiology)</term>
<term>Hallucinations (diagnosis)</term>
<term>Hallucinations (epidemiology)</term>
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<term>Mental Disorders (epidemiology)</term>
<term>Mental Disorders (psychology)</term>
<term>Middle Aged</term>
<term>Neurocognitive Disorders (complications)</term>
<term>Population Surveillance</term>
<term>Prevalence</term>
<term>Psychiatric Status Rating Scales</term>
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<term>United States (epidemiology)</term>
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<term>Italy</term>
<term>United States</term>
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<keywords scheme="MESH" qualifier="epidemiology" xml:lang="en"><term>Hallucinations</term>
<term>Mental Disorders</term>
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<keywords scheme="MESH" qualifier="etiology" xml:lang="en"><term>Hallucinations</term>
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<keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Circadian Rhythm</term>
<term>Sleep</term>
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<keywords scheme="MESH" qualifier="psychology" xml:lang="en"><term>Mental Disorders</term>
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<keywords scheme="MESH" xml:lang="en"><term>Adolescent</term>
<term>Adult</term>
<term>Aged</term>
<term>Aged, 80 and over</term>
<term>Female</term>
<term>Humans</term>
<term>Male</term>
<term>Middle Aged</term>
<term>Population Surveillance</term>
<term>Prevalence</term>
<term>Psychiatric Status Rating Scales</term>
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<front><div type="abstract" xml:lang="en">Hallucinations are perceptual phenomena involved in many fields of pathology. Although clinically widely explored, studies in the general population of these phenomena are scant. This issue was investigated using representative samples of the non-institutionalized general population of the United Kingdom, Germany and Italy aged 15 years or over (N=13,057). These surveys were conducted by telephone and explored mental disorders and hallucinations (visual, auditory, olfactory, haptic and gustatory hallucinations, out-of-body experiences, hypnagogic and hypnopompic hallucinations). Overall, 38.7% of the sample reported hallucinatory experiences (19.6% less than once in a month; 6.4% monthly; 2.7% once a week; and 2.4% more than once a week). These hallucinations occurred, (1) At sleep onset (hypnagogic hallucinations 24.8%) and/or upon awakening (hypnopompic hallucinations 6.6%), without relationship to a specific pathology in more than half of the cases; frightening hallucinations were more often the expression of sleep or mental disorders such as narcolepsy, OSAS or anxiety disorders. (2) During the daytime and reported by 27% of the sample: visual (prevalence of 3.2%) and auditory (0.6%) hallucinations were strongly related to a psychotic pathology (respective OR of 6.6 and 5.1 with a conservative estimate of the lifetime prevalence of psychotic disorders in this sample of 0.5%); and to anxiety (respective OR of 5.0 and 9.1). Haptic hallucinations were reported by 3.1% with current use of drugs as the highest risk factor (OR=9.8). In conclusion, the prevalence of hallucinations in the general population is not negligible. Daytime visual and auditory hallucinations are associated with a greater risk of psychiatric disorders. The other daytime sensory hallucinations are more related to an organic or a toxic disorder.</div>
</front>
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