单选题 Playing violent video games can have immediate and lasting effects on a person's thoughts and behavior, new research shows. In fact, researchers report that the interactive and increasingly graphic mature of some video games makes them "potentially more dangerous" than violence-charged television and movies. Psychologists Anderson and Dill conducted two studies. In one study of 227 college students, the investigators found that students who more frequently played violent video games during junior high and high school were more likely to have engaged in " aggressive behavior". A second study in which 210 college students played either a violent or non-violent video game revealed that the violence-packed game increased subjects' aggression immediately afterwards. In the first study, the investigators questioned students on their natural levels of aggression and irritability, and their delinquent(犯法的)behavior — for instance whether they had bit other students in the past year. The investigators found that students with aggressive personalities and those who more often played violent video games were more prone to real-life aggression. Students who considered themselves aggressive were also more likely to play violet video games. Since aggressive people may seek out violet games, coming to the conclusion that the video games caused real-life delinquency is too risky. However, the second study lined video-game violence with immediate increases in aggression. Anderson and Dill had students play either a violent game or a nonviolent game and let the students believe they were playing against an opponent in another room after completing the video game, participants played a competitive-reaction game with their imaginary opponents, in this game the winner was allowed to publish the loser with a noise blast(响亮的噪音). The researchers found that students who were fresh from the violent video game blasted their opponents longer than those who played the nonviolent game. Because video games show short-term and long-term effects, Anderson and Dill suppose that videogame violence influences behavior not by arousing aggressive feelings, but by teaching players to find "aggressive solutions" to problems. Unlike TV, many video games demand that player identify with the aggressor and actively participate in violence.

单选题 According to the passage, violent video games may be more dangerous than violent movies or TV programs because video games______.

单选题 The purpose of the first study was to try to establish a cause effect relationship between ______.

单选题 In order to find out the short-term effect of violent video game, researchers______.

单选题 Which of the following statements is NOT true, according to the passage?

单选题 This best title of the passage can be______.