Arrows mark the target regions. Bottom panel shows possible patterns of temporal coding of CRs by a hypothetical processing unit. All three cells showed changes in firing rate during CRs. CELL 1 and CELL 2 were recorded from nucleus interpositus and CELL 3 was recorded from the cortical area. Bottom panels show the response of single units on single trials.
Top traces show eyelid position, and the bottom traces show neuronal activity.
Most of the units recorded within nucleus interpositus responded in a manner that anticipated the timing and amplitude of both CR-peaks. These observations are consistent with schemes that implement learning and CR timing within the cerebellum.