A new, longer-term study of video game play from the Max Planck Institute for Human Development and Germany’s University Clinic Hamburg-Eppendorf recently published in Molecular Psychiatry found that adults showed “no significant changes” on a wide variety of behavioral measures after two straight months of daily violent game play.
Most scientific studies on the effects of video game violence measure participants right after the completion of a gameplay session, when the adrenaline prompted by the on-screen action is likely still pumping. Researcher Simone Kuhn and her co-authors argue that “effects observed only for a few minutes after short sessions of video gaming are not representative of what society at large is actually interested in, namely how habitual violent video game play affects behavior on a more long-term basis.”
To correct for the “priming” effects inherent in these other studies, researchers had 90 adult participants play either Grand Theft Auto V or The Sims 3 for at least 30 minutes every day over eight weeks (a control group played no games during the testing period). The adults chosen, who ranged from 18 to 45 years old, reported little to no video game play in the previous six months and were screened for pre-existing psychological problems before the tests.
The participants were subjected to a wide battery of 52 established questionnaires intended to measure “aggression, sexist attitudes, empathy, and interpersonal competencies, impulsivity-related constructs (such as sensation seeking, boredom proneness, risk taking, delay discounting), mental health (depressivity, anxiety) as well as executive control functions.” The tests were administered immediately before and immediately after the two-month gameplay period and also two months afterward, in order to measure potential continuing effects.
Over 208 separate comparisons (52 tests; violent vs. non-violent and control groups; pre- vs. post- and two-months-later tests), only three subjects showed a statistically significant effect of the violent gameplay at a 95 percent confidence level. Pure chance would predict more than 10 of the 208 comparisons would be significant at that level, leading the researchers to conclude “that there were no detrimental effects of violent video game play.”
As video games continue to be a convenient scapegoat for many politicians and critics in the wake of continuing school shootings, this new comprehensive study “provide[s] strong evidence against the frequently debated negative effects of playing violent video games,” as the authors put it.
The results aren’t all good news for gaming proponents, though; while other studies have found gameplay had a positive effect on “executive control tasks” like multitasking, this study found no such benefits.
While this is an encouraging new direction for game research, it’s not the final word on violent gaming’s effects. The authors acknowledge that “future research is needed to demonstrate the absence of effects of violent video game play in children.” On that score, a longitudinal study of 11,000 British youths from 2011 found “playing electronic games was not associated with conduct problems,” for what it’s worth.
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