Psychometric functions for observer S3 in the AO-corrected 5.81-mm pupil condition. Examples of the Weibull psychometric functions used to estimate resolution threshold. Symbols show empirical data while solid lines show fitted psychometric function (lines colored to correspond with symbols). Pre-training, training day 1–5, and post-training empirical data are shown as black diamonds, red crosses, orange stars, green squares, blue Xs, purple triangles, and gray circles, respectively.