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Related Experiment Videos

On modelling personality disorders: are personality style and disordered functioning independent or interdependent

G Parker1, J Roussos, K Wilhelm

  • 1School of Psychiatry and Mood Disorders Unit, University of New South Wales, Australia.

The Journal of Nervous and Mental Disease
|November 21, 1998
PubMed
Summary

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Current personality disorder (PD) definitions may conflate personality style with disorder. This study found personality style descriptors often act as proxy measures for disordered functioning, except for the obsessional personality style.

Area of Science:

  • Psychiatry
  • Clinical Psychology
  • Personality Disorders

Background:

  • Current diagnostic criteria for personality disorders (PDs) combine personality style and disordered functioning.
  • The relationship between intrinsic personality style and pathological functioning remains unclear.

Purpose of the Study:

  • To investigate whether personality style descriptors are proxy measures for, or independent of, disordered personality functioning.
  • To clarify the nature of personality descriptors in the context of personality disorders.

Main Methods:

  • Psychiatrists rated 16 personality style vignettes in a sample of depressed patients.
  • Eight manifestations of disordered personality functioning were assessed concurrently.
  • Intercorrelations were calculated between personality style vignettes and disordered functioning variables.

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Main Results:

  • A general interdependence was observed between personality style descriptors and disordered functioning.
  • This suggests current PD descriptors often reflect pathological functioning.
  • The obsessional personality style vignette was an exception, appearing independent of disordered function.

Conclusions:

  • Personality style descriptors in current PD definitions may function as proxy criteria for disorder assessment.
  • The findings suggest a need to refine the modeling, definition, and measurement of personality disorders.
  • The obsessional personality style warrants further investigation regarding its distinctiveness from disordered functioning.