Control of saccadic eye movements and combined eye/head gaze shifts by the medio-posterior cerebellum.

摘要: The cerebellar areas involved in the control of saccades have recently been identified medio-posterior cerebellum (MPC). Unit activity recordings, experimental lesions and electrical microstimulation this region cats monkeys provided a considerable amount data allowed development new computational models. In paper, we review these concepts about function, discuss their importance limitations suggest future directions for research. anatomical indicate that MPC has more than one site action visuo-oculomotor system. contrast, most models emphasize role connections with immediate pre-oculomotor circuits reticular formation, only recent model also incorporates ascending projections to superior colliculus. A major challenge studies, continuation initial attempt, is determine whether various output pathways correspond distinct contributions saccadic eye movements. Also, series studies cat indicated general orienting movements space, calling an increasing effort study production head-unrestrained gaze shifts.