- Part of the limbic system
- It is the centre of emotions, emotional behaviour and motivation
- Stimulating produces an aggressive response
Evidence: The case study of Charles Whitman - spree killer who had a tumour adjacent to his amygdala (which may have been the cause)
Animal experiments using cats - Making lesions to the amygdala in cats produces aggressive behaviour. If the amygdala is stimulated using an electric current, then the animal displays aggression. If the amygdala is removed, then the animal becomes passive and unresponsive and does not show a fear response to stressors
Neuroimaging (Swantje et al) - 20 healthy volunteers in the normal range of lifetime aggression. Found a significant negative correlation between amygdala volumes and trait aggression. Volunteers with higher aggression scores had 16-18% smaller amygdala volumes
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