Final answer:
Neuroticism is the key personality factor associated with aggression, serotonin levels play a role in predicting aggression, and negative emotions and perceived threat contribute significantly.
Explanation:
Neuroticism is mostly associated with aggression in personality factors. People high on neuroticism tend to be angry, impulsive, and hostile, predisposing them to aggression. Research has shown that low levels of serotonin can predict future aggression, highlighting its biological link to aggressive behavior. Additionally, negative emotions and perceived threat are significant contributors to aggression.
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