What Happens in the Brain During Aggression

Brain regions that influence aggression include the amygdala (area 1) and the prefrontal cortex (area 2). Individual differences in one or more of these regions or in the interconnections among them can increase the propensity for impulsive aggression.

Why does the amygdala cause aggression?

The amygdala has been shown to be an area that causes aggression. Stimulation of the amygdala results in augmented aggressive behavior, while lesions of this area greatly reduce one’s competitive drive and aggression. Another area, the hypothalamus, is believed to serve a regulatory role in aggression.

What part of the brain controls anger and aggression?

Amygdala. The amygdala helps coordinate responses to things in your environment, especially those that trigger an emotional response. This structure plays an important role in fear and anger.