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Related Experiment Videos

Dispositional impulsivity in normal and abnormal samples.

Janine D Flory1, Philip D Harvey, Vivian Mitropoulou

  • 1Department of Psychiatry, Box 1230, One Gustave Levy Place, Mount Sinai School of Medicine, New York, NY 10029, United States. janine.flory@mssm.edu

Journal of Psychiatric Research
|March 7, 2006
PubMed
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Impulsive personality traits are multidimensional, encompassing thrill-seeking, nonplanning, and disinhibited behaviors. This structure remains consistent across both normal and abnormal personality samples, linking typical and atypical personality features.

Area of Science:

  • Psychology
  • Psychiatry
  • Behavioral Science

Background:

  • Impulsive behaviors like aggression and substance use are key features of DSM Axis II Cluster B personality disorders.
  • Dispositional impulsivity is multidimensional, with various self-report measures assessing traits like novelty seeking, behavioral disinhibition, and nonplanning.
  • Limited research exists on the interrelationships between these different impulsivity measures.

Purpose of the Study:

  • To examine the structure of dimensional impulsive personality traits in a large normative sample.
  • To compare the structure of these traits in a normative sample versus a sample with DSM-III-R Cluster B personality disorder diagnoses.
  • To establish a common framework for understanding the multidimensional nature of impulsivity.

Main Methods:

Related Experiment Videos

  • Administered self-report measures of dispositional impulsivity to a normative sample (n=351).
  • Conducted factor analyses to identify latent factors of impulsivity.
  • Utilized confirmatory factor analyses to compare trait structure across normative and clinical (DSM-III-R Cluster B PD, n=70) samples.

Main Results:

  • Dispositional impulsivity was represented by three moderately correlated latent factors: thrill seeking, nonplanning, and disinhibited behavior.
  • The internal structure of these impulsive personality traits was consistent across both normative and clinical samples.
  • Correlational relationships between impulsivity factors and behavioral/sociodemographic factors were also consistent across samples.

Conclusions:

  • Impulsivity is a multidimensional trait with a consistent structure across normal and abnormal personality variations.
  • Findings support a common framework for understanding impulsivity and the relationship between normal and abnormal personality features.
  • The study validates the multidimensional structure of impulsivity and its relevance in both general and clinical populations.