Information processing in the spinocerebellar system

Maria Stella Valle, Gianfranco Bosco, Richard Poppele

Research output: Contribution to journalArticle

Abstract

The purpose of this study was to determine whether sensory information about limb kinematics relayed to the cerebellum over spinocerebellar pathways may be modified at the cerebellar level. We tested this by recording from dorsal spinocerebellar tract (DSCT) and Purkinje cells under the same experimental conditions in which the hindlimbs of anesthetized cats were passively moved through a series of step-like movement cycles. A population analysis of the response behavior showed that DSCT neurons encode a combination of limb axis position and movement velocity, whereas the Purkinje cells located in the DSCT cerebellar target areas encode limb axis velocity and position independently. We conclude from this that the cerebellum may somehow extract a velocity component from the afferent input signal.

Original languageEnglish
Pages (from-to)4075-4079
Number of pages5
JournalNeuroReport
Volume11
Issue number18
Publication statusPublished - 2000

Keywords

  • Cerebellum
  • Limb kinematics
  • Limb movement
  • Proprioception
  • Velocity sensitivity

ASJC Scopus subject areas

  • Neuroscience(all)

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  • Cite this

    Valle, M. S., Bosco, G., & Poppele, R. (2000). Information processing in the spinocerebellar system. NeuroReport, 11(18), 4075-4079.