The report provides a good review of the medical and psychological literature going as far back as 1985. The medical journals, especially, are often overlooked by gaming academics. I recognized some of the references, particularly Anderson and Bushman’s (2001) meta-analysis of studies on the effects of violent video games on behavior. Plenty of other references in the document should prove to be of high interest to those in the field of video game research.
The effects of violent video games are trivially small.
Research shows that playing violent video games can induce a feeling of guilt that leads to increased prosocial behavior (positive actions that benefit others) in the real world. Another study published in discovered that youths exposed to violence in action games displayed more prosocial behavior and civic engagement, "possibly due to the team-oriented multiplayer options in many of these games." In a 2013 peer-reviewed study published in , "Three experiments failed to find a detrimental effect of violent video games on prosocial behavior [positive actions taken to benefit others], despite using contemporary and classic games, delayed and immediate test-phases, and short and long exposures." Researchers have shown that playing video games also results in increased moral sensitivity.
New Study: Video Games and Teens' Behavior | Dartmouth Now
Anderson C.A., & Bushman, B.J. (2001). Effects of violent video games on aggressive behavior, aggressive cognition, aggressive affect, physiological arousal, and prosocial behavior: A meta-analytic review of the scientific literature. Psychological Science 12(5). 353-359.
New Study: Video Games and Teens' Behavior