The cerebellum, which has been found to be abnormal in histopathological studies of autism, is important for motor adaptation. We studied controls and children with high functioning autism (HFA) performing a catching adaptation test that is known to be impaired following cerebellar damage. Results showed no differences in adaptation rates or after-effects for HFA subjects versus controls. The findings indicate normal motor adaptation in HFA, suggesting normal or compensated cerebellar function for this task.