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Related Experiment Videos

Mood patterns and variations associated with personality disorder pathology.

Richard F Farmer1, Heather M Nash, Darci Dance

  • 1Department of Psychology, University of Canterbury, Christchurch, New Zealand.

Comprehensive Psychiatry
|June 30, 2004
PubMed
Summary

Individuals with personality disorders (PDs) generally experience neutral to positive moods, but less so than those without PDs. Specific PD traits, particularly anxious-fearful ones, correlate with negative mood, while mood variability is not linked to PDs.

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Area of Science:

  • Psychiatry
  • Clinical Psychology
  • Affective Science

Background:

  • Personality disorders (PDs) represent enduring patterns of inner experience and behavior that deviate markedly from cultural expectations.
  • Understanding the relationship between PD pathology and mood is crucial for accurate diagnosis and effective treatment.
  • Previous research has yielded mixed findings regarding mood disturbances in individuals with PDs.

Purpose of the Study:

  • To investigate the association between various forms and degrees of personality disorder pathology and mood experiences.
  • To examine the relationship between specific PD traits and diagnostic categories with mood valence and variability.
  • To explore the covariation of mood with different PD dimensions, controlling for shared variance.

Main Methods:

Related Experiment Videos

  • Repeated mood assessments over a 4-day period in 98 psychotropic medication-free individuals.
  • Comparison of mood experiences between individuals with and without PD diagnoses (n=57 vs. n=41).
  • Analysis of mood covariation with anxious-fearful (A-F), erratic-emotional-dramatic (E-D), and odd-eccentric (O-E) PD traits, and specific PD diagnostic categories and trait features.

Main Results:

  • Individuals with PDs reported neutral to moderately positive moods, less positive than those without PDs.
  • Moderate covariation was found between mood and anxious-fearful PD traits, but not E-D or O-E traits after controlling for common variance.
  • Avoidant and depressive PDs, along with specific traits like borderline and obsessive-compulsive, were most reliably associated with negative mood.

Conclusions:

  • While individuals with PDs may not exhibit predominantly negative moods, their mood valence is less positive compared to controls.
  • Anxious-fearful traits and specific PDs are more consistently linked to negative mood than other PD clusters.
  • Mood variability is a stable individual difference but shows no general association with PD categories or traits, suggesting distinct underlying mechanisms.