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17. Cognitive Functions > 17-7. Mental Disorders Associated with Cerebellar Dys...

17-7. Mental Disorders Associated with Cerebellar Dysfunction

The cognitive sequela that follows damage to the dorsolateral prefrontal cortex is similar to that following damage of the neocerebellum (Diamond, 2000). A patient with paraneoplastic cerebellar degeneration was shown to exhibit selective frontal-executive disturbance, psychomotor slowing, and affective change, despite the finding that there was no apparent extracerebellar involvement (Collinson et al., 2006). These findings underline the importance of the cerebellum in regulating cognitive function.

Cerebellar mutism is another indication of the cerebellum’s role in language acquisition and performance. This syndrome typically affects children and, in rare cases, young adults. They become mute one to two days after the surgical removal of a tumor in the posterior cranial fossa. The surgery requires a certain degree of damage to the cerebellar hemispheres. The syndrome, which persists for one to four months, is not accompanied by disturbances of consciousness and language comprehension. It has been suggested that the obligatory damage to the cerebellar hemispheres is the most important factor in development of the mutism (Janssen et al., 1998).


  

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