Flutterby™! : GTA doesn't cause violence

Two months of daily GTA causes “no significant changes” in behavior:

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.

Nature: Molecular Psychiatry: Does playing violent video games cause aggression? A longitudinal intervention study. doi:10.1038/s41380-018-0031-7