Cross-cultural Validity of the Reactive-Proactive Aggression Questionnaire Among Adults Across Five Countries

Presence and Impact of Adverse Childhood Experiences and Reflective Functioning on Aggression in Adults With Antisocial Behaviour

This cross-sectional study investigated the relationship between the presence and impact of ACEs with both reactive and proactive aggression, and the possible moderating role of mentalization (operationalized as reflective functioning) in these expected relationships. Sixty-five inpatient and outpatient adults with any kind of antisocial behaviour completed the Dutch version of the Traumatic Experiences Checklist, the Reactive-Proactive Aggression Questionnaire, and the Adult Attachment Interview with the use of the Reflective Functioning Scale. Preliminary analysis showed a remarkably high level of ACEs, and a relatively high reported impact of these experiences. We found a positive relationship between the total presence of ACEs (including childhood maltreatment and adverse household factors), and both reactive and proactive aggression. We also found positive relationships between the experienced impact of these ACEs and both reactive and proactive aggression. Regarding childhood maltreatment in family of origin, we did not find a correlation between the presence of these experiences and respectively reactive and proactive aggression. However, we found a correlation between the impact of childhood maltreatment and reactive aggression. These results suggest that in addition to the cumulative experience of ACEs, the subjective burden of these experiences on individuals must not be underestimated in case of aggression. Additional moderation analysis showed no differences in these relationships in case of less developed versus medium-high developed reflective functioning. The findings substantiate the importance of early prevention and treatment programs with focus on ACEs to possibly reduce aggression.

Acute Exercise Improves Inhibitory Control but Not Error Detection in Male Violent Perpetrators: An ERPs Study With the Emotional Stop Signal Task

Violence has been linked to the co-occurrence of cognitive dysfunction and altered activations in several brain regions. Empirical evidence demonstrated the benefits of acute exercise on motor inhibition and error detection and their neuronal processing. However, whether such effects also hold for the population with violent behaviors remains unknown. This study examined the effects of acute aerobic exercise on inhibitory control and error monitoring among violent offenders. Fifteen male violent offenders were counterbalanced into experimental protocols, which comprised a 30-min moderately aerobic exercise [60% heart rate (HR) reserve] and a 30-min reading control session. After each session, participants performed an emotional stop signal task while event-related potentials (ERPs) were recorded simultaneously. Results showed insignificant changes in ERPs components [i.e., N2, P3, error-related negativity (ERN), and error-positivity (Pe) amplitudes] and the behavioral performance in go condition, stop accuracy, and post-error adjustments by exercise. However, the current study demonstrated that the acute exercise facilitated stop signal reaction time (SSRT) when compared to the control session regardless of emotional conditions. This is the first research to exhibit the improvements in inhibitory performance by acute exercise for violent offenders. Most importantly, this effect was independent of affective settings, expanding the existing knowledge of the influences of acute exercise on cognition. Our findings implicate the perspective of acute exercise for clinical and correctional practices.