Document Detail

Is optimism heritable? A study of twins.
MedLine Citation:
PMID:  8347115     Owner:  NLM     Status:  MEDLINE    
Is optimism heritable? We gave the Attributional Style Questionnaire (ASQ), a measure of optimism, to 115 monozygotic twin pairs (MZ) and 27 dizygotic twin pairs (DZ). The intraclass correlations of the ASQ scores were 0.48 for MZ twins (P < 0.0001) and 0 for DZ twins. Though the sample size of DZ twins is small, these results suggest that there may be a substantial genetic effect on optimism. We speculate, however, that the mechanism for the transmission of this, and other complex personality traits, may be highly indirect.
P Schulman; D Keith; M E Seligman
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, U.S. Gov't, P.H.S.; Review    
Journal Detail:
Title:  Behaviour research and therapy     Volume:  31     ISSN:  0005-7967     ISO Abbreviation:  Behav Res Ther     Publication Date:  1993 Jul 
Date Detail:
Created Date:  1993-09-09     Completed Date:  1993-09-09     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  0372477     Medline TA:  Behav Res Ther     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  569-74     Citation Subset:  IM    
Department of Psychology, University of Pennsylvania, Philadelphia 19104-6196.
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MeSH Terms
Cognition / physiology
Emotions* / physiology
Twins, Dizygotic / genetics*,  psychology
Twins, Monozygotic / genetics*,  psychology
Verbal Behavior
Grant Support

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