Neural activity during the viewing of emotional pictures in veterans with pathological anger and aggression

European Psychiatry : the Journal of the Association of European Psychiatrists
Lieke HeesinkElbert Geuze

Abstract

Anger and aggression are common mental health problems after military deployment. Anger and aggression have been associated with abnormalities in subcortical and cortical levels of the brain and their connectivity. Here, we tested brain activation during the processing of emotional stimuli in military veterans with and without anger and aggression problems. Thirty military veterans with anger and aggression problems and 29 veterans without a psychiatric diagnosis (all males) participated in this study. During an fMRI scan 32 negative, 32 positive and 32 neutral pictures from the International Affective Picture System were presented in intermixed order. The Aggression group showed heightened activity in brain areas including the supplementary motor area, the cingulum and the parietal cortex, in response to stimuli, regardless of category. Furthermore, the Aggression group showed stronger connectivity between the dorsal anterior cingulate cortex (dACC) and the amygdala during the viewing of negative stimuli, and weaker connectivity between dACC and medial prefrontal cortex during the viewing of positive stimuli. Veterans with anger and aggression problems showed enhanced brain response to all stimuli during the task, irrespective...Continue Reading

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Citations

Jan 29, 2019·Neurosurgery·Flavia Venetucci GouveiaRaquel C R Martinez
Feb 26, 2019·Frontiers in Psychology·Victoria Ashley, Diane Swick
Jan 28, 2021·Neuropsychopharmacology : Official Publication of the American College of Neuropsychopharmacology·Neir EshelAmit Etkin

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