Oculomotor cerebellum.
The anatomical, physiological, and behavioral evidence for the involvement of three regions of the cerebellum in oculomotor behavior is reviewed here: (1) the oculomotor vermis and paravermis of lobules V, IV, and VII; (2) the uvula and nodulus; (3) flocculus and ventral paraflocculus. No region of the cerebellum controls eye movements exclusively, but each receives sensory information relevant for the control of multiple systems. An analysis of the microcircuitry suggests how sagittal climbing fiber zones bring visual information to the oculomotor vermis; convey vestibular information to the uvula and nodulus, while optokinetic space is represented in the flocculus. The mossy fiber projections are more heterogeneous. The importance of the inferior olive in modulating Purkinje cell responses is discussed.
Voogd
Jan
J
Department of Neuroscience, Erasmus Medical Center Rotterdam, Box 1738, 3000 DR Rotterdam, The Netherlands. janvoogd@bart.nl
Barmack
Neal H
NH
D000344:Afferent Pathways / Q000502:physiology; D000818:Animals; D002415:Cats; D002531:Cerebellum / Q000033:anatomy & histology* / Q000502:physiology; D002540:Cerebral Cortex / Q000033:anatomy & histology; D005133:Eye Movements / Q000502:physiology*; D000882:Haplorhini; D006801:Humans; D008959:Models, Neurological; D009412:Nerve Fibers / Q000502:physiology; D015835:Ocular Motility Disorders / Q000503:physiopathology; D009847:Olivary Nucleus / Q000166:cytology / Q000502:physiology; D011149:Pons / Q000033:anatomy & histology; D011434:Proprioception / Q000502:physiology; D011689:Purkinje Cells / Q000502:physiology; D051381:Rats; D012154:Reticular Formation / Q000033:anatomy & histology