Aggression
Some scholars believe that behaviors like aggression may be partially learned by watching and imitating people's behavior, while other researchers have concluded that the media may have some small effects on aggression. There is also research questioning this view. For instance, a long-term outcome study of youth found no long-term relationship between playing violent video games and youth violence or bullying. One study suggested there is a smaller effect of violent video games on aggression than has been found with television violence on aggression. This effect is positively associated with type of game violence and negatively associated to time spent playing the games. The author concluded that insufficient evidence exists to link video game violence with aggression. However, another study suggested links to aggressive behavior.
Rage (emotion)
Some psychologists, however, such as Bushman and Anderson, argue that the hostile/predatory dichotomy that is commonly employed in psychology fails to define rage fully, since it is possible for anger to motivate aggression, provoking vengeful behavior, without incorporating the impulsive thinking that is characteristic of rage. They point to individuals or groups such as Seung-Hui Cho in the Virginia Tech massacre or Eric Harris and Dylan Klebold of the Columbine High School massacre, all of whom clearly experienced intense anger and hate, but whose planning (sometimes over periods of years), forethought, and lack of impulsive behavior is readily observable.