MODEL OF THE CEREBELLUM AS AN ARRAY OF ADJUSTABLE PATTERN GENERATORS.

Summary form only given, as follows. Microelectrode studies of signal transmission through the intermediate cerebellum in alert animals are reviewed. These data provide important constraints on the information processing which must go on within the cerebellum. While some sources of input (mossy fibers) signal detailed parametric information about the state of the body, other inputs (climbing fibers) signal only the occurrences of sensory events. Signals recorded on the output side appear to represent motor commands; they are movement-related with only weak sensory components of response. On the basis of these results and the knowledge that cerebellar lesions interfere with sensorimotor learning, a model is proposed which treats the cerebellum as an array of adjustable motor pattern generators.