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The five-factor model in schizotypal personality disorder.
Ronald J Gurrera1, Chandlee C Dickey, Margaret A Niznikiewicz
1Harvard Medical School, Department of Psychiatry, Boston, MA, USA. ronald.gurrera@med.va.gov
Schizophrenia Research
|September 20, 2005
Summary
Schizotypal Personality Disorder (SPD) is linked to distinct personality traits, with women showing higher openness than men. Understanding these gender differences is crucial for future research on SPD.
Area of Science:
- Psychiatry
- Psychology
- Personality Disorders
Background:
- Inconsistent findings exist regarding the five-factor model of personality in schizotypal personality disorder (SPD), especially concerning openness.
- Previous research has not consistently identified specific personality profiles associated with SPD.
Purpose of the Study:
- To investigate personality differences in individuals with SPD compared to healthy controls using the five-factor model.
- To examine the influence of gender on personality traits within the context of SPD.
Main Methods:
- The NEO-Five Factor Inventory (NEO-FFI) was administered to 28 community volunteers with SPD and 24 healthy individuals.
- Multivariate statistical analyses were employed to assess personality variations based on diagnosis and gender.
Main Results:
- Individuals with SPD exhibited significantly higher neuroticism and lower extraversion, agreeableness, and conscientiousness than controls.
- Female SPD subjects showed significantly higher openness than healthy females, a finding that remained significant after controlling for symptom severity.
Conclusions:
- Gender-specific differences in openness may explain prior inconsistent results in SPD personality research.
- Future studies on schizotypal personality disorder should prioritize the examination of gender effects on personality traits.