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Cerebellar contribution to linguistic processing efficiency revealed by focal damage

Published online by Cambridge University Press:  01 September 1998

JEFFREY SCHATZ
Affiliation:
Department of Psychology, Washington University, St. Louis, MO
SANDRA HALE
Affiliation:
Department of Psychology, Washington University, St. Louis, MO
JOEL MYERSON
Affiliation:
Department of Psychology, Washington University, St. Louis, MO

Abstract

The cerebellum's role in cognitive skills was examined in a child (L.C.) with focal injury to the left cerebellum. Initial symptoms included aphasia and dysarthria. At 3 and 9 months post-injury, clinical neuropsychological tests revealed persistent psychomotor slowing as well as deficits in executive functions. Further cognitive testing at 13 and 16 months post-injury demonstrated that L.C. processed information from both the linguistic and nonlinguistic domains more slowly than age-, grade- and sex-matched controls. Notably, her linguistic processing was more than twice as slow as that of her peers, whereas her nonlinguistic processing was only approximately 20% slower. Within each domain the degree of cognitive slowing was approximately the same across diverse tasks. These results are consistent with the hypothesis of a cerebellar contribution to cognitive processing, particularly the processing of linguistic information. (JINS, 1998, 4, 491–501.)

Type
Research Article
Copyright
© 1998 The International Neuropsychological Society

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