- Normal levels of Serotonin have a calming effect on the brain.
- Low levels remove this meaning individuals are less likely to be in control of impulsions and aggressive behaviour.
- Normally, Serotonin prevents the amygdala (responsible for fear and anger) from being activated.
- This means when there is less Serotonin the amygdala is more likely to be stimulated by external threatening factors therefore making aggression also more likely.
- Mann et al: Administered Dexfenfluramine which depletes Serontonin in the brain, to 35 healthy adults.
- He then used…
Similar Psychology resources: