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Use of a Psychophysiological Script-driven Imagery Experiment to Study Trauma-related Dissociation in Borderline Personality Disorder
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Sympathetic Nervous System Predominance in Intimate Partner Violence Perpetrators After Coping With Acute Stress.

A Romero-Martínez1, M Lila1, L Moya-Albiol1

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Intimate partner violence (IPV) perpetrators show distinct physiological and emotional stress responses compared to nonviolent men. These differences in autonomic nervous system (ANS) activity and negative affect highlight unique coping mechanisms in violent individuals.

Keywords:
acute stresshear rateintimate partner violencenegative affectpsychophysiology

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Area of Science:

  • Psychology
  • Forensic Science
  • Psychophysiology

Background:

  • Intimate partner violence (IPV) perpetrators may exhibit emotional dysregulation under stress, potentially explaining their violent tendencies.
  • Emotional regulation can be objectively measured using psychophysiological indicators of autonomic nervous system (ANS) activity, including cardiorespiratory and electrodermal signals.

Purpose of the Study:

  • To compare psychophysiological and psychological state changes in IPV perpetrators versus nonviolent men when exposed to an acute laboratory stressor.
  • To investigate if psychological state variables influence the psychophysiological stress response in IPV perpetrators.

Main Methods:

  • A laboratory stressor involving cognitive tests administered to a committee was used.
  • Psychophysiological measures included heart rate (HR), pre-ejection period (PEP), respiratory sinus arrhythmia (RSA), and skin conductance levels (SCL).
  • Psychological state was assessed through self-report measures of affect.

Main Results:

  • IPV perpetrators exhibited higher HR and SCL, shorter PEP, and lower RSA during stress recovery compared to controls.
  • IPV perpetrators reported higher negative affect, specifically more anger and worse mood, post-stress.
  • Baseline anger levels predicted increased SCL during stress, indicating heightened emotional arousal.

Conclusions:

  • IPV perpetrators and nonviolent men demonstrate different psychophysiological and psychological responses to acute stress.
  • Findings suggest potential utility for psychophysiological measures in forensic science for identifying individuals with violent tendencies and their therapeutic needs.
  • Combining psychophysiological measurements with self-reports can enhance the reliability of assessments for violent individuals.