The proposal outlines a study to assess the role of computers in assessing and instructing students with severe cerebral palsy in spatial and communication skills. The computer's capacity to make learning interesting and challenging to the severely disabled student is noted, along with its use as a diagnostic tool. Implications for theories on cognitive development are suggested, especially regarding the role of sensory motor learning in concept formation. The proposed study is outlined, in which eight severely cerebral palsied children (6 to 14 years old) will be tested to determine their cognitive development in terms of Piagetian tasks. The development of communication via a computer system will also be examined. (CL)