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Personality and voice disorders: a multitrait-multidisorder analysis.

N Roy1, D M Bless, D Heisey

  • 1Department of Communication Disorders, University of Utah, Salt Lake City 84112, USA.

Journal of Voice : Official Journal of the Voice Foundation
|December 29, 2000
PubMed
Summary
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Personality traits are linked to functional dysphonia (FD) and vocal nodules (VN), but not other voice disorders. This suggests personality may influence some voice conditions, challenging the idea that voice problems solely cause personality changes.

Area of Science:

  • Psychology
  • Speech and Hearing Science

Background:

  • Personality traits are increasingly recognized as potential factors in various health conditions.
  • The relationship between personality and voice disorders requires further investigation to understand causal pathways.

Purpose of the Study:

  • To investigate the role of personality in common voice disorders.
  • To determine if personality is a cause, concurrent factor, or outcome of voice disorders.

Main Methods:

  • Compared personality profiles of vocally normal individuals with those having functional dysphonia (FD), vocal nodules (VN), spasmodic dysphonia (SD), and unilateral vocal fold paralysis (UVFP).
  • Utilized the Multidimensional Personality Questionnaire (MPQ) for personality assessment.
  • Employed univariate and discriminant analyses to compare personality traits across groups.

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Main Results:

  • Significant personality differences were found between the functional dysphonia (FD) and vocal nodules (VN) groups, and between these groups and controls.
  • The FD group exhibited introversion, stress reactivity, alienation, and unhappiness.
  • The VN group presented as socially dominant, stress reactive, aggressive, and impulsive.
  • No consistent personality differences were identified for spasmodic dysphonia (SD) or unilateral vocal fold paralysis (UVFP) groups compared to controls.

Conclusions:

  • Personality traits appear to be associated with functional dysphonia and vocal nodules, supporting trait theories of dispositional bases for these conditions.
  • The disability hypothesis, suggesting personality changes result from vocal disability, was not strongly supported.
  • Further research is necessary to clarify the specific causal mechanisms linking personality and voice disorders.