Learning multiple visuomotor transformations: Adaptation and context-dependent recall

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

Recent motor control theories suggest that the brain uses internal models to plan and control accurate movements. An internal model is thought to represent how the biomechanics of the arm interacting with the outside world would respond to a motor command; therefore it can be seen as a predictive model of the reafference that helps the system plan ahead. Moreover, adaptation studies show that humans can learn multiple internal models. It is not clear, however, whether and how contextual cues are used to switch among competing internal models, which are required to compensate for altered environments. To investigate this question, we asked healthy participants to perform center-out pointing movements under normal and distorted visual feedback (0°, 30° counterclockwise, and 60° clockwise rotation of handscreen cursor relationships) conditions. The results suggest that humans can learn multiple environments simultaneously and can use contextual cues to facilitate adaptation and to recall the appropriate internal model of the visuomotor transformation.

Original languageEnglish (US)
Pages (from-to)534-546
Number of pages13
JournalMotor Control
Volume8
Issue number4
DOIs
StatePublished - Jan 1 2004

Keywords

  • Associative learning
  • Internal model
  • Motor learning

ASJC Scopus subject areas

  • Neuroscience(all)
  • Physical Therapy, Sports Therapy and Rehabilitation

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