1.Exposure to violent games increases physiological arousal.
Studies measuring the physiological responses to playing violent video games (compared with physiological responses to non-violent games) have shown that violent games increase physiological arousal. Heart rate, systolic blood pressure, and diastolic blood pressure all increase when playing violent games.
2.Exposure to violent games increases aggressive thoughts.
Studies measuring cognitive responses to playing violent video games (compared with cognitive responses to non-violent games) have shown that violent games increase aggressive thoughts. These findings have been found for males and females, children and adults, and in experimental and co-relational studies. Children who tend to interpret ambiguous social cues as being of hostile intent (i.e., have a hostile attribution bias) are more aggressive
3.Exposure to violent games increases aggressive emotions.
Studies measuring emotional responses to playing violent video games (compared with emotional responses to non-violent games) have shown that violent games increase aggressive emotions. Adolescents themselves often seem to recognize this. In this study, students who were more "addicted" to video games were significantly more likely to be in a bad mood before, during, and after play than were non-addicted students.
4.Exposure to violent games increases aggressive actions.
Studies measuring aggressive behaviours after playing violent video games (compared with behaviours displayed after playing non-violent games) have shown that violent games increase aggression. In one study of college students, students played either a violent or non-violent game. After playing this game, they were given a competitive reaction time task in which they played against another student. If they beat the other student, they got to deliver a loud "noise blast," and were able to control how loud and how long the noise blast would be. Students who had previously played the violent video game delivered longer noise blasts to their opponents.
