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Action Video Games Improve Visual Contrast Quality

March 30th, 2009 Medgadget Editors News

contrast33.jpg
University of Rochester and Tel Aviv University scientists have discovered that people who play high action video games have a more refined ability to see in low contrast environments. On the other hand, those that play Sims, a mind numbing drudgery from the point of view of someone more into Halo, seem to gain no improvement in contrast resolution.

The finding builds on Bavelier’s past work that has shown that action video games decrease visual crowding and increases visual attention. Contrast sensitivity, she says, is the primary limiting factor in how well a person can see. Bavelier says that the findings show that action video game training may be a useful complement to eye-correction techniques, since game training may teach the visual cortex to make better use of the information it receives.
To learn whether high-action games could affect contrast sensitivity, Bavelier, in collaboration with graduate student Renjie Li and colleagues Walt Makous, professor of brain and cognitive sciences at the University of Rochester, and Uri Polat, professor at the Eye Institute at Tel Aviv University, tested the contrast sensitivity function of 22 students, then divided them into two groups: One group played the action video games "Unreal Tournament 2004" and "Call of Duty 2." The second group played "The Sims 2," which is a richly visual game, but does not include the level of visual-motor coordination of the other group’s games. The volunteers played 50 hours of their assigned games over the course of 9 weeks. At the end of the training, the students who played the action games showed an average 43% improvement in their ability to discern close shades of gray—close to the difference she had previously observed between game players and non-game players—whereas the Sims players showed none.

University of Rochester press release: Action Video Games Improve Vision…
Abstract in Nature Neuroscience: Enhancing the contrast sensitivity function through action video game training…
Image: Photo illustrating 58% better contrast perception versus “regular” contrast perception.
Flashbacks: Action Video Games Sharpen Vision 20 Percent; Studies Show Benefits of Video Game Playing

Medgadget Editors

Medical technologies transform the world! Join us and see the progress in real time. At Medgadget, we report the latest technology news, interview leaders in the field, and file dispatches from medical events around the world since 2004.

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