Figure 7.

Learning while adapted does not alter adaptation-induced perceptual biases. a, White circles show the mean duration of motion aftereffects (MAE) caused by adaptation to visual motion in an upward direction or directions offset symmetrically from upward. Black circles show the same function after the same group of subjects had repeatedly practiced the direction discrimination task while adapted to directions offset ±20° from upward. Symbols are the arithmetic mean of six subjects. b, Each panel shows the mean duration of motion aftereffects for individual subjects before training and are plotted as a function of those obtained after training. Panels correspond to different adapting directions. Error bars are ±95% CIs calculated from either the intersubject variability in mean duration estimates (a) or trial-by-trial variability in individual duration estimates (b).