The study explains that, of the "expert video game players" tested, the "VGP group" (group playing "action" games Unreal Tournament 2004 and Call of Duty 2) exhibited "enhanced contrast sensitivity" versus the "NVGP group" (the folks playing "non-action" game The Sims 2), especially in the light of the population differences' interactions with spatial frequencies. Wait, WHAT?!
In so many words, majority percentages of the "VGP group" were clustering together on the high end of the scale while "NVGP group" numbers were clustering on the other end. Professor Gary Rubin, of the University College London Institute of Ophthalmology, sums up these findings rather nicely, saying, "This is a small study, showing a small effect, but it was carefully done, and merits further investigation."