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Nat Neurosci. 2005 Oct;8(10):1292-4. Epub 2005 Aug 28.

Spatial navigation impairment in mice lacking cerebellar LTD: a motor adaptation deficit?

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Laboratoire de Physiologie de la Perception et de l'Action, UMR CNRS 7152, 11 place Marcelin Berthelot, Collège de France, 75005 Paris, France.


L7-PKCI transgenic mice, which lack parallel fiber-Purkinje cell long-term depression (LTD), were tested with two different mazes to dissociate the relative importance of declarative and procedural components of spatial navigation. We show that L7-PKCI mice are deficient in acquisition of an adapted goal-oriented behavior, part of the procedural component of the task. This supports the hypothesis that cerebellar LTD may subserve a general sensorimotor adaptation process shared by motor and spatial learning functions.

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