Figure 4: A. Position of the twelve coronal slices through the cerebellum in one subject, shown on a mid-sagittal anatomical image. Slice 1 is the most anterior slice. B. Functional map illustrating the location of the average activity for training on left-right direction of motion discrimination in one subject during the first run. C. Activity in the same slices in the last run, after learning occurred. D. Functional map illustrating the return of cerebellar activity for an unpracticed direction of motion (up-down). The return of activity corresponds to the subject’s performance close to chance level. E. Cerebellar activity is absent when the subject performs the static letter discrimination task which does not require learning.