Cerebellar Lesions and Effects on Posture, Locomotion and Limb Movement

S. M. Morton, A. J. Bastian

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

The cerebellum is a subcortical structure important for controlling and adapting movements. Damage to the cerebellum results in ataxia (i.e., incoordination) but not loss of movement or paralysis. There are many distinct signs of limb, balance, and gait ataxia, which are exacerbated by moving multiple joints together and by moving quickly. Some cerebellar deficits seem to result from a failure of motor commands to account for mechanical interactions between segments. Others appear to be more related to timing control or generating predictive motor commands. Optimal cerebellar control is maintained through adaptive learning processes, which are important for keeping movements appropriately adjusted for varying environmental demands.

Original languageEnglish (US)
Title of host publicationEncyclopedia of Neuroscience
PublisherElsevier Ltd
Pages717-722
Number of pages6
ISBN (Print)9780080450469
DOIs
StatePublished - Jan 1 2009

Keywords

  • Ataxia
  • Coordination
  • Dysmetria
  • Gait
  • Motor
  • Movement disorder
  • Multijoint
  • Stroke
  • Tremor

ASJC Scopus subject areas

  • Neuroscience(all)

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