Document Detail

Genetic and environmental influences on thin-ideal internalization.
MedLine Citation:
PMID:  23034902     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: Current research on the etiology of thin-ideal internalization focuses on psychosocial influences (e.g., media exposure). The possibility that genetic influences also account for variance in thin-ideal internalization has never been directly examined. This study used a twin design to estimate genetic effects on thin-ideal internalization and examine if environmental influences are primarily shared or nonshared in origin.
METHOD: Participants were 343 postpubertal female twins (ages: 12-22 years; M = 17.61) from the Michigan State University Twin Registry. Thin-ideal internalization was assessed using the Sociocultural Attitudes toward Appearance Questionnaire-3.
RESULTS: Twin modeling suggested significant additive genetic and nonshared environmental influences on thin-ideal internalization. Shared environmental influences were small and non-significant.
DISCUSSION: Although prior research focused on psychosocial factors, genetic influences on thin-ideal internalization were significant and moderate in magnitude. Research is needed to investigate possible interplay between genetic and nonshared environmental factors in the development of thin-ideal internalization.
Jessica L Suisman; Shannon M O'Connor; Steffanie Sperry; J Kevin Thompson; Pamela K Keel; S Alexandra Burt; Michael Neale; Steven Boker; Cheryl Sisk; Kelly L Klump
Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Twin Study     Date:  2012-10-03
Journal Detail:
Title:  The International journal of eating disorders     Volume:  45     ISSN:  1098-108X     ISO Abbreviation:  Int J Eat Disord     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2012-11-20     Completed Date:  2013-05-02     Revised Date:  2013-12-04    
Medline Journal Info:
Nlm Unique ID:  8111226     Medline TA:  Int J Eat Disord     Country:  United States    
Other Details:
Languages:  eng     Pagination:  942-8     Citation Subset:  IM    
Copyright Information:
Copyright © 2012 Wiley Periodicals, Inc.
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MeSH Terms
Anorexia Nervosa / diagnosis,  genetics*,  psychology*
Body Image*
Diet, Reducing / psychology
Diseases in Twins / diagnosis,  genetics*,  psychology*
Gene-Environment Interaction*
Genetic Predisposition to Disease / genetics,  psychology
Ideal Body Weight*
Internal-External Control*
Mass Media
Social Facilitation
Thinness / diagnosis,  genetics*,  psychology*
Young Adult
Grant Support
1-R01 MH0820-54/MH/NIMH NIH HHS; 5-R01 MH092377-02/MH/NIMH NIH HHS; R01 MH082054/MH/NIMH NIH HHS; R01 MH092377/MH/NIMH NIH HHS

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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