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

Nat Neurosci. 2005 Oct;8(10):1292-4. doi: 10.1038/nn1532. Epub 2005 Aug 28.

Abstract

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.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adaptation, Physiological / genetics
  • Adaptation, Physiological / physiology*
  • Analysis of Variance
  • Animals
  • Behavior, Animal
  • Cerebellum / cytology*
  • Escape Reaction / physiology
  • Long-Term Synaptic Depression / physiology*
  • Maze Learning / physiology
  • Mice
  • Mice, Inbred C57BL
  • Mice, Transgenic
  • Perceptual Disorders / genetics
  • Perceptual Disorders / physiopathology*
  • Protein Kinase C / genetics
  • Psychomotor Performance / physiology
  • Purkinje Cells / physiology*
  • Reaction Time / genetics
  • Spatial Behavior / physiology*
  • Time Factors

Substances

  • Protein Kinase C