The present investigation sought to determine if the performance of older children with learning disabilities, some of whom do and some of whom do not exhibit patterns of lateralized motor deficits, is similar to that of adults with known cerebral lesions as reported in some previous research. If patterns of performance of these two groups were shown to be similar, this would lend support to the view that cerebral dysfunction is a significant factor in the etiology of learning disabilities in older children. (Author)