Document Detail

Affective modulation of external misattribution bias in source monitoring in schizophrenia.
MedLine Citation:
PMID:  18377674     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Schizophrenic patients tend to attribute internal events to external agents, a bias that may be linked to positive symptoms. We investigated the effect of emotional valence on the cognitive bias. METHOD: Male schizophrenic subjects (n=30) and an experimenter alternatively produced neutral and negative words. The subject then decided whether he or the experimenter had generated the item. RESULTS: External misattributions were more common than self-misattributions, and the bias was greater for patients with active hallucinations and delusions relative to patients in remission. Actively psychotic patients but not patients in remission were more likely to generate external misattributions with negative relative to neutral words. CONCLUSIONS: Affective modulation of the externalizing cognitive bias in source monitoring is evident in patients with hallucinations and delusions.
S G Costafreda; G Brébion; P Allen; P K McGuire; C H Y Fu
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-04-01
Journal Detail:
Title:  Psychological medicine     Volume:  38     ISSN:  0033-2917     ISO Abbreviation:  Psychol Med     Publication Date:  2008 Jun 
Date Detail:
Created Date:  2008-05-13     Completed Date:  2008-10-07     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  1254142     Medline TA:  Psychol Med     Country:  England    
Other Details:
Languages:  eng     Pagination:  821-4     Citation Subset:  IM    
Institute of Psychiatry, King's College London, London, UK.
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MeSH Terms
Delusions / diagnosis,  psychology
Hallucinations / diagnosis,  psychology
Internal-External Control*
Personal Construct Theory*
Psychiatric Status Rating Scales
Reality Testing
Schizophrenia / diagnosis*
Schizophrenic Psychology*
Grant Support
//Wellcome Trust

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