Research on the Effects of Media Violence

Topics: Violence, Television, Aggression Pages: 14 (5155 words) Published: December 4, 2010
Research on the Effects of Media Violence
Whether or not exposure to media violence causes increased levels of aggression and violence in young people is the perennial question of media effects research. Some experts, like University of Michigan professor L. Rowell Huesmann, argue that fifty years of evidence show "that exposure to media violence causes children to behave more aggressively and affects them as adults years later." Others, like Jonathan Freedman of the University of Toronto, maintain that "the scientific evidence simply does not show that watching violence either produces violence in people, or desensitizes them to it." Many Studies, Many Conclusions

Andrea Martinez at the University of Ottawa conducted a comprehensive review of the scientific literature for the Canadian Radio-television and Telecommunications Commission (CRTC) in 1994. She concluded that the lack of consensus about media effects reflects three "grey areas" or constraints contained in the research itself. First, media violence is notoriously hard to define and measure. Some experts who track violence in television programming, such as George Gerbner of Temple University, define violence as the act (or threat) of injuring or killing someone, independent of the method used or the surrounding context. Accordingly, Gerber includes cartoon violence in his data-set. But others, such as University of Laval professors Guy Paquette and Jacques de Guise, specifically exclude cartoon violence from their research because of its comical and unrealistic presentation. Second, researchers disagree over the type of relationship the data supports. Some argue that exposure to media violence causes aggression. Others say that the two are associated, but that there is no causal connection. (That both, for instance, may be caused by some third factor.) And others say the data supports the conclusion that there is no relationship between the two at all. Third, even those who agree that there is a connection between media violence and aggression disagree about how the one effects the other. Some say that the mechanism is a psychological one, rooted in the ways we learn. For example, Huesmann argues that children develop "cognitive scripts" that guide their own behaviour by imitating the actions of media heroes. As they watch violent shows, children learn to internalize scripts that use violence as an appropriate method of problem-solving. Other researchers argue that it is the physiological effects of media violence that cause aggressive behaviour. Exposure to violent imagery is linked to increased heart rate, faster respiration and higher blood pressure. Some think that this simulated "fight-or-flight" response predisposes people to act aggressively in the real world. Still others focus on the ways in which media violence primes or cues pre-existing aggressive thoughts and feelings. They argue that an individual’s desire to strike out is justified by media images in which both the hero and the villain use violence to seek revenge, often without consequences. In her final report to the CRTC, Martinez concluded that most studies support "a positive, though weak, relation between exposure to television violence and aggressive behaviour." Although that relationship cannot be "confirmed systematically," she agrees with Dutch researcher Tom Van der Voot who argues that it would be illogical to conclude that "a phenomenon does not exist simply because it is found at times not to occur, or only to occur under certain circumstances." What the Researchers Are Saying

The lack of consensus about the relationship between media violence and real-world aggression has not impeded ongoing research. Here’s a sampling of conclusions drawn to date, from the various research strands: Research strand: Children who consume high levels of media violence are more likely to be aggressive in the real world In 1956, researchers took to the laboratory to compare the behaviour of 24 children...
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