Posters: Applied visionOpen Access JournalThis journal suppl. contains the ECVP 2012 conference abstractsWe examined how action videogame playing affects visual-motor control using a manual control task in which participants used a joystick to keep a blob centered on a large display as its horizontal position was randomly perturbed. Six naive Non-Videogame Players were trained with an action videogame (Mario Kart Wii, Nintendo), and six were trained with a strategy videogame (Roller Coaster Tycoon III, Atari) for 1–2 hours a day for 10 hours in total. Their performance on the manual control task was measured before the training, after 5-hour training, and after 10-hour training, and their contrast sensitivity function (CSF) was measured bef...