Fig. 2.

Intra-subject comparison of conventional and gradual adaptation. (A) The extent to which each subject adapted is contrasted (gray lines; thick black line is the average across all subjects). In all cases, subjects adapt to a greater extent in the gradual adaptation paradigm. (B) In comparing the rate of de-adaptation during the washout block, all subjects retain their adaptation better (de-adapt slower) in the gradual paradigm. (C) Corrective saccades made during post- and pre-adaptation trials suggest anticipatory planning of error corrections. Each subject was consistent in the number of corrective saccades they made prior to both adaptation sessions; during post-adaptation trials, all subjects tended to make more corrective saccades in the dark following the conventional adaptation paradigm as compared to the gradual paradigm.