Title: The Five-Factor Model of Personality and Borderline Personality Disorder: A Genetic Analysis of Comorbidity
Authors: Distel, Marijn A ×
Trull, Timothy J
Willemsen, Gonneke
Vink, Jacqueline M
Derom, Cathérine
Lynskey, Michael
Martin, Nicholas G
Boomsma, Dorret I #
Issue Date: 2009
Publisher: Elsevier
Series Title: Biological Psychiatry vol:66 issue:12 pages:1131-1138
Abstract: BACKGROUND: Recently, the nature of personality disorders and their relationship with normal personality traits has received extensive attention. The five-factor model (FFM) of personality, consisting of the personality traits neuroticism, extraversion, openness to experience, agreeableness, and conscientiousness, is one of the proposed models to conceptualize personality disorders as maladaptive variants of continuously distributed personality traits. METHODS: The present study examined the phenotypic and genetic association between borderline personality and FFM personality traits. Data were available for 4403 monozygotic twins, 4425 dizygotic twins, and 1661 siblings from 6140 Dutch, Belgian, and Australian families. RESULTS: Broad-sense heritability estimates for neuroticism, agreeableness, conscientiousness, extraversion, openness to experience, and borderline personality were 43%, 36%, 43%, 47%, 54%, and 45%, respectively. Phenotypic correlations between borderline personality and the FFM personality traits ranged from .06 for openness to experience to .68 for neuroticism. Multiple regression analyses showed that a combination of high neuroticism and low agreeableness best predicted borderline personality. Multivariate genetic analyses showed the genetic factors that influence individual differences in neuroticism, agreeableness, conscientiousness, and extraversion account for all genetic liability to borderline personality. Unique environmental effects on borderline personality, however, were not completely shared with those for the FFM traits (33% is unique to borderline personality). CONCLUSIONS: Borderline personality shares all genetic variation with neuroticism, agreeableness, conscientiousness, and extraversion. The unique environmental influences specific to borderline personality may cause individuals with a specific pattern of personality traits to cross a threshold and develop borderline personality.
ISSN: 0006-3223
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Clinical Genetics
Clinical Genetics Section (-)
× corresponding author
# (joint) last author

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