Fig. 9.

Simplified diagram to indicate some of the pathways for NOT and pontine nuclei (PN) derived visual and eye motion signals to the contralateral cerebellum. Horizontal directional retinal error information for smooth pursuit adaptation is available in the NOT. NOT neurons respond preferentially to ipsiversive visual motion and drive neurons in the ipsilateral dorsal cap of Kooy (dck) and the medial accessory olive (MAO) of the inferior olive. For leftward pursuit and left NOT stimulation (ipsiversive pursuit paradigm), the right floccular complex and vermis receive leftward complex spikes and multidirectional simple spikes derived from the PN (e.g., NRTP and DLPN). The arrows indicate that the PN provides multi-directional eye and visual motion signals, while the NOT provides only horizontal visual error signals. Abbreviations; cf., climbing fiber; Floc, flocculus; Mf, mossy fiber; PC, Purkinje cell; Pf, parallel fiber; vPF, ventral paraflocculus.