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Commentary on reconceptualizing personality disorder categories using trait dimensions.

W J Livesley1

  • 1Department of Psychiatry, University of British Columbia, Vancouver.

Journal of Personality
|May 8, 2001
PubMed
Summary

Trait models, like the five-factor approach, can describe personality disorder categories. However, further development is needed for clinical application and to capture all personality disorder aspects.

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Area of Science:

  • Psychological sciences
  • Personality psychology
  • Clinical psychology

Background:

  • Personality disorders are traditionally categorized.
  • Trait models offer a dimensional approach to personality.
  • The five-factor model is a prominent trait model.

Purpose of the Study:

  • To evaluate the utility of trait models, specifically the five-factor approach, in explaining personality disorder categories.
  • To assess the clinical applicability of trait models for personality disorders.
  • To identify limitations of trait models in capturing the full spectrum of personality disorder.

Main Methods:

  • Examination of existing evidence on trait models and personality disorder categories.
  • Analysis of the five-factor model's structure and its alignment with clinical concepts.

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  • Conceptual review of trait model applicability in clinical settings.

    • Main Results:

    • Dimensional trait models are consistent with current evidence regarding personality disorders.
    • Trait models can accommodate existing personality disorder categories.
    • Lower-order trait facets require further refinement for clinical relevance.

    Conclusions:

    • Trait models show potential for understanding personality disorders but need further development for direct clinical use.
    • The organizing and integrative functions of personality are crucial aspects not fully captured by current trait models.
    • Future research should focus on enhancing trait model structures and incorporating broader personality functions.