The authors of the study argue that the root of all these tasks involves making a probabilistic inference, where complete information is missing, so people have to make a best guess based on known odds. Video gaming, in their view, increases the efficiency at which people can process the odds and make an accurate decision—gamers simply can do more with less. As a result, any task of this sort sees benefits.

via Gamers make faster decisions than nongamers, just as accurate.