Fig. 1.

Experimental setup and field potential recordings. (A) Illustration of the experimental setup including relevant afferent and efferent cerebellar pathways. As CS, we used stimulation of the forelimb, superior colliculus (SC) pontine nuclei, or whiskers. As US, we used stimulation of climbing fibers (CF) or the periorbital skin (eye). CN, cerebellar nuclei; GC, granule cells; NO, nucleo-olivary pathway; PC, Purkinje cell. (B) Examples of field potentials elicited on the cerebellar cortex following stimulation of cerebellar afferents. (C) A Purkinje cell recording showing simple spikes, complex spikes, and a learned pause response or Purkinje cell CR.