A while back, I wrote a short review of the scientific results on whether "brain training" games like the Brain Age (devs. Nintendo SDD & Nintendo SPD, various dirs., 2005-2013) series have any cognitive benefits beyond mere entertainment, as their marketing strongly implies. I argued that while it is possible that cognitive decline might be mitigated in certain populations by playing such games, the effect was poorly established and no better (and possibly worse) than other mental exercises, whether they be more traditional activities or any other video game. This question is clearly one that is on the minds of many consumers; search results leading to this post are one of the largest sources of traffic to this blog.
Recently, a group of scientists has issued a statement through the Stanford Center on Longevity that summarizes the current scientific thinking toward such games. The statement, "A Consensus on the Brain Training Industry from the Scientific Community," is available online. It largely agrees with my assessment, arguing that there is no evidence that these games are better than other activities in reducing cognitive decline. It, however, offers new and different citations to the scientific literature that my post did not have access to at the time, and it is written by experts in the field. Please give it a read if you are interested in this topic.
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