An individual's emotion are the result of a series of different components within the brain; impairments to specific areas leads to aggressive and impulsive behaviour in addition to mental disorders, such as psychopathy. The major component that controls emotional regulation is the amygdala. Firstly, the amygdala is responsible for “reward learning, social interaction, and moral emotion and reasoning” and well as fear conditioning. Size reduction or damage to the amygdala leads to impulsive and aggressive behaviour. A study conducted assessed the fear conditioning of 1,795 children, all age three. Researchers then followed these individuals until the age of 23 and discovered that the individuals who had poor fear conditioning at age 3 had criminals
