TY  - JOUR
PY  - 2021//
TI  - Appetitive aggression is associated with lateralized activation in nucleus accumbens
JO  - Psychiatry research. Neuroimaging
A1  - Schöne, Maria
A1  - Seidenbecher, Stephanie
A1  - Kaufmann, Jörn
A1  - Antonucci, Linda Antonella
A1  - Frodl, Thomas
A1  - Koutsouleris, Nikolaos
A1  - Schiltz, Kolja
A1  - Bogerts, Bernhard
SP  - e111425
EP  - e111425
VL  - 319
IS  - 
N2  - Aggression can have a hedonistic aspect in predisposed individuals labeled as appetitive aggression. The present study investigates the neurobiological correlates of this appetitive type of aggression in non-clinical samples from community. Applying functional magnet resonance imaging (fMRI), we tested whether 20 martial artists compared to 26 controls had a higher activation in the nucleus accumbens (NAcc), a central part of the dopaminergic, mesolimbic reward system. Subjects had to watch violent vs. neutral pictures representing appetitive aggression. The affinity towards hedonistic violence was assessed by the Appetitive and Facilitative Aggression Scale (AFAS). Furthermore, the subjects rated all the pictures with regard to how pleasant and violent they were. The martial artists reported a higher AFAS-score and a more positive perception of violent pictures. On the neural level, across all subjects, there was a significant positive correlation between the AFAS-score and the activation in the left NAcc and an inverse association with the activation of the right NAcc when watching violent compared to neutral pictures. This lateralization effect indicates a different processing of hedonistic aspects of aggression in the two hemispheres.<p />  <p>Language: en</p>
LA  - en
SN  - 0925-4927
UR  - http://dx.doi.org/10.1016/j.pscychresns.2021.111425
ID  - ref1
ER  -