TY - JOUR PY - 2014// TI - Differences in brain circuitry for appetitive and reactive aggression as revealed by realistic auditory scripts JO - Frontiers in behavioral neuroscience A1 - Moran, James K. A1 - Weierstall, Roland A1 - Elbert, Thomas SP - 425 EP - 425 VL - 8 IS - N2 - Aggressive behavior is thought to divide into two motivational elements: The first being a self-defensively motivated aggression against threat and a second, hedonically motivated "appetitive" aggression. Appetitive aggression is the less understood of the two, often only researched within abnormal psychology. Our approach is to understand it as a universal and adaptive response, and examine the functional neural activity of ordinary men (N = 50) presented with an imaginative listening task involving a murderer describing a kill. We manipulated motivational context in a between-subjects design to evoke appetitive or reactive aggression, against a neutral control, measuring activity with Magnetoencephalography (MEG).

RESULTS show differences in left frontal regions in delta (2-5 Hz) and alpha band (8-12 Hz) for aggressive conditions and right parietal delta activity differentiating appetitive and reactive aggression. These results validate the distinction of reward-driven appetitive aggression from reactive aggression in ordinary populations at the level of functional neural brain circuitry.

Language: en

LA - en SN - 1662-5153 UR - http://dx.doi.org/10.3389/fnbeh.2014.00425 ID - ref1 ER -