Any cognitive benefit of video games? Video-game studies have serious flaws

Do video games provide some kind of cognitive benefit after the game play?  There have been arguments that video games lead to improved attention, quicker responses, and visual skills.  A paper in Frontiers in Psychology has reviewed the past literature and found that they are all flawed with some basic bias errors.  This doesn’t mean that video games don’t have cognitive benefits.  But we don’t have any evidence that they do.

Most of the studies compare the cognitive performances of expert gamers with those of non-gamers, and suffer from well-known pitfalls of experimental design. The studies are not blinded: participants know that they have been recruited because they have gaming expertise, which can influence their performance, because they are motivated to do well and prove themselves. And the researchers know which participants are in which group, so they can have preconceptions that might inadvertently affect participants’ performance.

via Video-game studies have serious flaws : Nature News.