Skip to main content

Study Finds Violent Games Affect Behavior

Get ready for another round of debate about whether video games are destroying society: a study conducted by researchers at the University of Missouri-Columbia suggests there may be a causal link between playing violent video games and aggression in game players.

The study, being reported in New Scientist and scheduled to be published in the Journal of Experimental Social Psychology, measured the so-called P300 response in electroencephalogram (EEG) recordings of 39 experienced gamers as they were shown various images. The P300 response varies with the emotional impact of an image, and is typically greater if an image is unexpected, surprising, or startling.

Subjects who identified themselves as experienced players of violent video games had both smaller and delayed P300 responses to violent images compared to subjects with less experience with violent games. Moreover, when given the opportunity to punish a fake opponent in another game, participants with the reduced P300 responses dealt out the most severe virtual punishments. However, these same participants didn’t show a reduction in P300 responses when shown emotionally-laden images such as dead animals or sick children: the reduced response only occurred with violent imagery.

The researchers also attempted to control for the participants’ natural levels of hostility via standard questionnaires, but still found that aggressiveness was strongly correlated to the reduced P300 response. “As far as I’m aware, this is the first study to show that exposure to violent games has effects on the brain that predict aggressive behavior,” says psychologist Bruce Bartholow.

The study’s findings may be food for thought and new discussion, but the topic of whether violent video games “breed” violent behavior has already been the subject of some research and much debate. Previous studies have shown that people “get used to” various kinds of stimulus, and as they habituate their emotional responses become less pronounced. Others have suggested that any correlation between aggression and violent video games is self-selecting, meaning that individuals who are innately more violent or aggressive are more likely to play and enjoy violent video games.

Editors' Recommendations

Geoff Duncan
Former Digital Trends Contributor
Geoff Duncan writes, programs, edits, plays music, and delights in making software misbehave. He's probably the only member…
ESPN and Walmart temporarily shun violent video games after mass shootings
walmart marquee outside the store.

Shortly after the recent mass shootings in El Paso, Texas, and Dayton, Ohio, two companies have taken steps to avoid promoting violent video games -- which some, including the president, have pointed to as a contributing factor in America's high mass shooting rates. Both Walmart and ESPN have temporarily distanced themselves from violent video games, despite the apparent lack of a causal link between games and mass shootings.

This week, Walmart employees were instructed to remove signage for violent video games and films, as well as change demonstration kiosks that would allow customers to try out such games. Any events promoting violent video games were also canceled, and screens showing hunting videos were turned off as well. A spokesperson for Walmart said the decision was made "out of respect" for the two mass shootings. but would not result in a change to the products sold.

Read more
President Trump wants a crackdown on violent games. What does that mean?
How to Watch Trump State of the Union

This past weekend, separate mass shootings in El Paso and Dayton left 30 dead and dozens more wounded. President Trump addressed the shootings in a statement on Monday morning, placing part of the blame on violent video games.

"It is too easy today for troubled youth to surround themselves with a culture that celebrates violence," said President Trump. "We must stop or substantially reduce this, and it has to begin immediately." The President said the"gruesome and grisly video games that are now commonplace" must be addressed to stop the "glorification of violence in our society."

Read more
Digital Trends Live: Facebook’s Study, Uber’s fast-food drones, deepfake Zuck
episode 150 fqijg63tsbblhpr27hhlubowpq

On this episode of Digital Trends Live, DT Content Manager Hanif Jackson joins host Greg Nibler to dig into the trending tech news of the day, including Facebook’s new Study app that pays users for their data, Uber’s fast-food delivery drones, a new Legend of Zelda game, an E3 update, deepfake Mark Zuckerberg, and more.

Later, DT senior writer Parker Hall sits down with Shaun Masavage, chief executive officer of Edge Tech Labs, to discuss and test their Fret Zealot LED learning system for the ukulele.

Read more