Video-Game Play Induces Plasticity in the Visual System of Adults with Amblyopia
(a) Position discrimination. The visual task was to pick the misaligned pair of Gabor patch groupings out of three choices (top, middle, or bottom) . Each grouping consisted of 8 Gabor patches. Positional noise to the Gabor patches was introduced by varying their vertical positions according to a Gaussian distribution function. (b) Percent improvement in positional acuity as a function of baseline positional acuity (zero noise). Each data point represents the mean improvement across different noise levels. (c) Effect of video-game experience on sampling efficiency. (d) Effect of video-game experience on internal noise. (e) Threshold versus noise (TvN) function. Three different neural mechanism signature profiles are illustrated. SB2: TvN function shifts downward (increase in efficiency). SA5: The knee point of TvN function shifts downward and to the left (decrease in internal noise). SS3: combination of both.