FIGURE 2.

Differences in movement kinematics (peak lateral deviations) across testing sessions (Experiment 1). (A) Hand paths and adaptation profiles from an exemplar participant in Experiment 1. Hand paths were sampled at random for three trials in the baseline phase. The first and last three trials are shown for the adaptation phase. The first three trials are shown for the washout phase. Peak lateral deviations (cm) were measured on each trial and plotted for the exemplar participant. (B) Group average adaptation profiles (n = 28, 12 female). Lines represent the mean and shaded regions the SEM. Adaptation was measured in Early Adaptation, Late Adaptation, and Washout (shaded gray regions and inset panels). (C) Comparisons of the average peak lateral deviations measured in Early Adaptation in each session (Initial, 24 h, and 1 week). Gray lines indicate individual participant averages measured across sessions. Error-bars indicate mean and SEM during Early Adaptation. (D) Average peak lateral deviations in Late Adaptation. (E) Average peak lateral deviation in Washout. Data in panels (D,E) are represented in the same manner as panel (C). *p < 0.05 and ***p < 0.001 after Bonferroni corrections (corrected for 3 comparisons).