Exposure to violent video games increases automatic aggressiveness is an academic paper by Eric Uhlmanna of Yale University and Jane Swanson of the University of Washington, first published in the Journal of Adolescence in 2004.
The paper looks at the effect of exposure to violent video games on participants' self-association with aggressive traits and actions on the Implicit Association Test.
John Fitzgibbons — best known for his work in the Quake community — was contracted to develop test levels for the experiment. He chose to use the Doom engine as the platform, as the lack of true 3D made the game more accessible to people who may have had no experience with first person shooters. The levels were designed to be linear, maximize exposure to shooting monsters and minimize distractions.