 A great deal of discussion of violence in video games followed this event with strong arguments made on both sides, and research into the phenomenon which had begun during the 1980s received renewed support and interest.In December 2001, Surgeon General David Satcher, led a study on violence in youth and determined that while the impact of video games on violent behavior has yet to be determined, "findings suggest that media violence has a relatively small impact on violence," and that "meta-analysis [had demonstrated that] the overall effect size for both randomized and correlational studies was small for physical aggression and moderate for aggressive thinking.