Healthy individuals with auditory verbal hallucinations; who are they? Psychiatric assessments of a selected sample of 103 subjects

Epidemiological studies suggest that auditory verbal hallucinations (AVH) occur in approximately 10%-15% of the general population, of whom only a small proportion has a clinically relevant psychotic disorder. It is unclear whether these hallucinations occur as an isolated phenomenon or if AVH in no...

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Vydané v:Schizophrenia bulletin Ročník 36; číslo 3; s. 633
Hlavní autori: Sommer, Iris E C, Daalman, Kirstin, Rietkerk, Thomas, Diederen, Kelly M, Bakker, Steven, Wijkstra, Jaap, Boks, Marco P M
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: United States 01.05.2010
Predmet:
Adult
Cross-Sectional Studies
Delusions - diagnosis
Delusions - epidemiology
Delusions - genetics
Delusions - psychology
Diagnostic and Statistical Manual of Mental Disorders
Female
Genetic Predisposition to Disease - genetics
Hallucinations - diagnosis
Hallucinations - epidemiology
Hallucinations - genetics
Hallucinations - psychology
Humans
Interview, Psychological
Linear Models
Male
Middle Aged
Psychiatric Status Rating Scales - statistics & numerical data
Psychometrics - statistics & numerical data
Reference Values
Risk Factors
Schizotypal Personality Disorder - diagnosis
Schizotypal Personality Disorder - epidemiology
Schizotypal Personality Disorder - genetics
Schizotypal Personality Disorder - psychology
Social Adjustment
Young Adult
ISSN:1745-1701, 1745-1701
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Shrnutí:Epidemiological studies suggest that auditory verbal hallucinations (AVH) occur in approximately 10%-15% of the general population, of whom only a small proportion has a clinically relevant psychotic disorder. It is unclear whether these hallucinations occur as an isolated phenomenon or if AVH in nonclinical individuals are part of a more general susceptibility to schizophrenia. For this study, 103 healthy individuals with frequent AVH were compared with 60 controls matched for sex, age, and education. All participants were examined by a psychiatrist using standardized diagnostic interviews and questionnaires. The individuals with AVH did not have clinically defined delusions, disorganization, or negative or catatonic symptoms, nor did they meet criteria for cluster A personality disorder. However, their global level of functioning was lower than in the controls and there was a pronounced increase on all subclusters of the Schizotypal Personality Questionnaire (SPQ) and the Peters Delusion Inventory, indicating a general increased schizotypal and delusional tendency in the hallucinating subjects. History of childhood trauma and family history of axis I disorders were also more prevalent in these individuals. We showed that higher SPQ scores, lower education, and higher family loading for psychiatric disorders, but not presence of AVH, were associated with lower global functioning. Our data suggest that AVH in otherwise healthy individuals are not an isolated phenomenon but part of a general vulnerability for schizophrenia.
Bibliografia:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1745-1701
1745-1701
DOI:10.1093/schbul/sbn130