Intracellular recording of potentials of cells of isolated cerebellum in the frog

: Intracellular potentials of granular, Purkinje and glial cells were recorded in an isolated frog cerebellum in response to electrical stimulation of cerebellar peduncle. The stimuli inhibited strongly the activity of most granular cells. "Slow" (20-50 ms) and "fast" (1-2 ms) spikes were recorded in Purkinje cells. Glial cell responses consisted of a slow waves of depolarization summated with repetitive stimuli and reached an amplitude of 20 mV.