What are the psychological features of bullies?

Research finds that bullies have a distinct psychological makeup. They lack prosocial behavior, are untroubled by anxiety, and do not understand others’ feelings. They exhibit a distinctive cognitive feature, a kind of paranoia: They misread the intentions of others, often imputing hostility in neutral situations. Others may not like them, but they typically see themselves quite positively. Those who chronically bully tend to have strained relationships with parents and peers.