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Posttraumatic Stress Disorder's Underlying Dimensions and Their Relation With Impulsivity Facets.

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  • 1*Department of Psychology, University of Toledo, OH; †Division of Clinical Psychology, Department of Psychiatry and Human Behavior, Warren Alpert Medical School of Brown University, Providence, RI; ‡School of Psychology, University of Ulster, Coleraine Campus, Londonderry, Ireland; §Australian Centre for Posttraumatic Mental Health, and Department of Psychiatry, University of Melbourne, Victoria, Australia; and ∥Department of Psychiatry, University of Toledo, Ruppert Health Center, OH.

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Posttraumatic stress disorder (PTSD) is linked to impulsivity. Sensation-seeking tendencies in individuals with PTSD are most associated with impulsivity, particularly in arousal and mood symptoms.

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Area of Science:

  • Psychology
  • Psychiatry
  • Neuroscience

Background:

  • Posttraumatic stress disorder (PTSD) is frequently comorbid with impulsivity.
  • Previous research suggests a link between PTSD and general impulsivity.

Purpose of the Study:

  • To investigate the specific relationship between PTSD symptom clusters and impulsivity subscales.
  • To identify which impulsivity component is most associated with PTSD-related alterations in arousal/reactivity and mood/cognitions.

Main Methods:

  • Administered the PTSD Checklist for DSM-5 (PCL-5) and the UPPS Impulsivity Scale.
  • Utilized a sample of 412 nonclinical subjects with a history of trauma.

Main Results:

  • PTSD symptom clusters related to arousal/reactivity and mood/cognitions were significantly associated with the sensation-seeking tendency subscale of impulsivity.
  • This association was stronger than with other impulsivity components.

Conclusions:

  • Sensation-seeking tendencies are a key component of impulsivity linked to PTSD.
  • Assessing and addressing sensation-seeking and acting impulsively under negative affect is crucial in trauma treatment.
  • Sensation-seeking may drive the comorbidity between PTSD and impulsive behaviors.