Adaptation to gradual as compared with sudden visuo-motor distortions

Florian A. Kagerer, José L. Contreras-Vidal, George E. Stelmach

Research output: Contribution to journalArticle

209 Scopus citations

Abstract

If visual feedback is discordant with movement direction, the visuo-motor mapping is disrupted, but can be updated with practice. In this experiment subjects practiced discrete arm movements under conditions of visual feedback rotation. One group was exposed to 10°-step increments of visual feedback rotation up to a total of 90°, a second group to a 90°visual feedback rotation throughout the experiment. After the first group reached the 90°visual feedback rotation, its subjects performed faster, with less spatial error, and showed larger aftereffects than the subjects who practiced constantly under the 90°visual feedback rotation condition. Results suggest that gradually increasing feedback distortion allows more complete adaptation than a large, sudden distortion onset.

Original languageEnglish (US)
Pages (from-to)557-561
Number of pages5
JournalExperimental Brain Research
Volume115
Issue number3
DOIs
StatePublished - Jul 28 1997

Keywords

  • Internal models
  • Motor control
  • Visual feedback rotation
  • Visuomotor learning

ASJC Scopus subject areas

  • Neuroscience(all)

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