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The Relation Between Trait Anger and Impulse Control in Forensic Psychiatric Patients: An EEG Study.

Marien Lievaart1, Frederik M van der Veen2, Jorg Huijding2,3

  • 1Institute of Psychology, Erasmus University Rotterdam, P. O. Box 1738, 3000 DR, Rotterdam, The Netherlands. lievaart@fsw.eur.nl.

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Summary

High trait anger in forensic patients is linked to poorer impulse control, especially in anger-provoking situations. This suggests deficits in error processing may fuel continued impulsive, angry behaviors.

Keywords:
EEGError related negativityImpulsivityInhibitory controlN2P3Trait anger

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Area of Science:

  • Neuroscience
  • Forensic Psychology
  • Cognitive Psychology

Background:

  • Inhibitory control is crucial for managing trait anger and aggression.
  • Limited research explores electroencephalographic (EEG) activity during response inhibition in individuals with high trait anger.

Purpose of the Study:

  • To investigate the association between trait anger and anger-primed inhibitory control in forensic psychiatric patients.
  • Utilize behavioral and electrophysiological measures to assess response inhibition.

Main Methods:

  • Thirty-eight forensic psychiatric patients with medium to high recidivism risk participated.
  • An affective Go/NoGo task was administered while electroencephalographic (EEG) data were recorded.

Main Results:

  • Higher trait anger correlated with lower accuracy on NoGo trials, particularly when anger was primed (behavioral data).
  • A significant inverse relationship was found between trait anger and error-related negativity amplitudes (electrophysiological data).
  • Trait anger was not significantly related to N2/P3 event-related potentials.

Conclusions:

  • Trait anger is inversely related to impulse control in forensic populations, especially in hostile contexts.
  • Elevated trait anger may be associated with impaired automatic error processing, potentially contributing to persistent impulsive behaviors despite negative outcomes.