Motor Psychophysics

Christopher Buneo, J. F. Soechting

Research output: Chapter in Book/Report/Conference proceedingChapter

4 Scopus citations


The motor plan for an arm-reaching movement can be defined in a variety of frames of reference. This article reviews the behavioral and electrophysiological evidence that this movement vector is initially defined in a retinocentric frame of reference (parietal reach region) then subsequently remapped into frames of reference more closely aligned with arm posture (area 5 and primary motor cortex). These coordinate transformations are facilitated by the remapping of proprioceptively derived hand location from arm-fixed to retinocentric coordinates, and may facilitate visually mediated, online movement corrections, especially under conditions of relative motion of the body and target.

Original languageEnglish (US)
Title of host publicationEncyclopedia of Neuroscience
PublisherElsevier Ltd.
Number of pages5
ISBN (Print)9780080450469
StatePublished - Jan 1 2009


  • Coordinate transformations
  • Frame of reference
  • Motor cortex
  • Parietal cortex
  • Proprioception
  • Psychophysics
  • Reaching
  • Visual feedback

ASJC Scopus subject areas

  • Neuroscience(all)


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