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2b - Highlighting the Value of Dimensional Conceptualizations and Environmental Influences: Commentary on Issues and New Directions in Personality Disorder Genetics

from Part I - Etiology

Published online by Cambridge University Press:  24 February 2020

By
Susan C. South  and
Amber M. Jarnecke
Edited by
Carl W. Lejuez  and
Kim L. Gratz
Carl W. Lejuez
Affiliation:
University of Kansas
Kim L. Gratz
Affiliation:
University of Toledo, Ohio
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Summary

This commentary reflects on Jang and Choi’s (this volume) chapter summarizing the extent work on behavior and molecular genetic studies of personality disorder (PD). The authors argue that more work needs to be done on refining the PD phenotype, as most work in genetics to date has utilized categorical definitions of PD, even though clinical psychology generally and the field of PDs specifically is moving resolutely toward a dimensional conceptualization (as represented in the alternative model of PDs in the DSM-5). They also argue that the real benefit of both quantitative and measured gene approaches to studying PDs might not be the elucidation of more precise heritability estimates or even the identification of specific genes, but the contribution of environmental influences to maladaptive personality traits.

Keywords

dimensionalalternative modelphenotypeendophenotypegene x environment interaction
Type
Chapter
Information
The Cambridge Handbook of Personality Disorders , pp. 44 - 47
Publisher: Cambridge University Press
Print publication year: 2020

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