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Scientific Commentaries |
Cognition, emotion and the cerebellum
1 Ataxia Unit, 2 Cognitive/Behavioral Neurology Unit, Massachusetts General Hospital Boston, MA, USA
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The traditional teaching that the cerebellum is purely a motor control device no longer appears valid, if, indeed, ever it was. There is increasing recognition that the cerebellum contributes to cognitive processing and emotional control in addition to its role in motor coordination. Anatomical and physiological studies reveal that there is a primary sensorimotor region of the cerebellum in the anterior lobe, and a secondary sensorimotor region in the medial aspect of the posterior lobe. In contrast, cerebral association areas that subserve higher order behaviour are linked preferentially with the lateral hemispheres of the cerebellar posterior lobein feedforward loops via the nuclei of the basis pontis, and in feedback loops from deep cerebellar nuclei via
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