Fig. 4.

Motor output in postadaptation error-clamp block. A–C: maximum force output during the error-clamp trials in the post-adaptation retention block (means ± SE). Bin size is 6 trials. D: fragility of the memory. The change in force output from the beginning to the end of the post-adaptation block, expressed as percentage reduction from the first 6 trials to the last 6 trials. The changes are shown as means ± SE. In the gradual condition, the severe patients had less percentage loss of motor output than that of control and mild patients.