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The functional area of the cerebellum, comprising the vermis, flocculonodular lobe, and associated nuclei, having two-way connections with Deiters' nucleus in the medulla oblongata. Lesions in this area lead to nystagmus and ataxia, especially involving trunk movements. See also cerebellar syndrome. Compare neocerebellum, spinocerebellum. [So called because it is a part of the cerebellum connected to Deiters' nucleus, which receives inputs mainly from the vestibular system]

Subjects: Psychology.

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