Frog cerebellum: absence of long-term inhibition upon Purkinje cells.

Electrophysiological studies of the cerebellar cortex of the frog demonstrate a lack of long-term inhibition upon the Purkinje cells. This lack of inhibition correlates well with the absence of stellate and basket cells in the molecular layer of this cerebellum and strongly supports the idea that these interneurones are the agents responsible for the prolonged inhibition seen in the Purkinje cells of other species.