Journal
SCIENCE
Volume 300, Issue 5624, Pages 1437-1439Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1083661
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Funding
- NINDS NIH HHS [NS17778, NS40813, NS30256] Funding Source: Medline
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Patients with cerebellar damage are known to exhibit deficits in the temporal control of movements. We report that these deficits are restricted to discontinuous movements. Cerebellar patients exhibited no deficit in temporal variability when producing continuous, rhythmic movements. We hypothesize that the temporal properties of continuous movements are emergent and reflect the operation of other control parameters not associated with the cerebellum. In contrast, discontinuous movements require an explicit representation of the temporal goal, a function of the cerebellum. The requirement for explicit temporal representation provides a parsimonious account of cerebellar involvement in a range of tasks.
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