The American Psychiatric Association recently rejected a movement to incorporate game addiction into its Diagnostic and Statistical Manual of Mental Disorders, but that hasn't stopped folks at the National Development and Research Institute from publishing the findings from a survey conducted with 3,380 adult gamers.
The study found that five percent of participants reported "moderate to extreme problem game-playing." Commonly reported problem titles included Call of Duty, the Grand Theft Auto series, online poker games, and World of Warcraft. The team concluded that "there is evidence to suggest that problem game-playing is linked to particular kinds of game genres" and that further research is needed.
Study links MMOs to 'problem' game-playing
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