Abstract and Keywords
Several regions of the cerebellum contribute to eye movements. The one best known is the ‘vestibular’ cerebellum, modifying visual and vestibular reflexes. The second well-understood oculomotor region is the oculomotor vermis, the major substrate of short-term saccadic learning and the adjustment of the gain of the initial, open loop part of smooth pursuit eye movements. Several studies have provided evidence for yet a further oculomotor region in the hemispheric parts of the cerebellum, involving parts of Crus I, II, and the simple lobule. As the dorsal paraflocculus, adjoining the vestibular cerebellum, it seems to contribute to smooth-pursuit and to saccades. However, their specific contributions to these two forms of goal-directed eye movements have not yet been worked out.
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