Executive (Dys)Functioning and Impulsivity as Possible Vulnerability Factors for Aggression in Forensic Patients

Area of Science:

• Psychology
• Neuroscience
• Forensic Psychiatry

Background:

• Reactive aggression is a significant concern in psychiatric populations.
• Understanding the predictors of reactive aggression is crucial for intervention and risk assessment.
• Existing research often relies on self-report, necessitating behavioral assessments.

Purpose of the Study:

• To investigate executive dysfunction and impulsivity as predictors of reactive aggression.
• To differentiate predictors of self-reported versus behaviorally assessed aggression.
• To explore the role of response inhibition in reactive aggression.

Main Methods:

• A behavioral assessment using a personalized boxing body opponent bag with harassing feedback was employed.
• Measures included aggressive behavior, self-reported aggression, executive functioning (working memory, flexibility, divided attention), and impulsivity dimensions (Sensation Seeking, Impulsive Decision Making, Response Inhibition).
• Participants were 44 incarcerated psychiatric patients.

Main Results:

• Executive functioning (working memory) and impulsive decision-making predicted self-reported reactive aggression.
• Response inhibition was the sole predictor of reactive aggressive behavioral responses.
• Response inhibition demonstrated a stronger predictive capacity for reactive aggressive behavior than other executive functions.

Conclusions:

• Response inhibition is a critical factor in reactive aggressive behavior, potentially more so than broader executive functions.
• Findings suggest that inadequate response inhibition may be a valuable predictor for violent recidivism.
• Future research should focus on response inhibition as a target for interventions aimed at reducing aggression and recidivism.