Drift and diffusion in movement adaptation to space-time constraints

Yeou Teh Liu, Tsung Yu Hsieh, Karl M. Newell

Research output: Contribution to journalArticle

Abstract

Recent studies have shown more than one time scale of change in the movement dynamics of practice. Here, we decompose the drift and diffusion dynamics in adaptation to performing discrete aiming movements with different space-time constraints. Participants performed aiming movements on a graphics drawing board to a point target at 5 different space-time weightings on the task outcome. The drift was stronger the shorter the time constraint whereas noise was U-shaped across the space-time conditions. The drift and diffusion of adaptation in discrete aiming movements varied as a function of the space-time constraints on performance outcome and the spatial, temporal, or space-time measure of performance outcome. The findings support the postulation that the time scale of movement adaptation is task dependent.

Original languageEnglish
Pages (from-to)323-339
Number of pages17
JournalMotor Control
Volume17
Issue number4
DOIs
Publication statusPublished - 2013 Oct

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Keywords

  • Motor learning
  • Multiple time-scale
  • Speed and accuracy trade-off

ASJC Scopus subject areas

  • Physical Therapy, Sports Therapy and Rehabilitation
  • Clinical Neurology
  • Physiology (medical)

Cite this

Drift and diffusion in movement adaptation to space-time constraints. / Liu, Yeou Teh; Hsieh, Tsung Yu; Newell, Karl M.

In: Motor Control, Vol. 17, No. 4, 10.2013, p. 323-339.

Research output: Contribution to journalArticle

Liu, Yeou Teh ; Hsieh, Tsung Yu ; Newell, Karl M. / Drift and diffusion in movement adaptation to space-time constraints. In: Motor Control. 2013 ; Vol. 17, No. 4. pp. 323-339.
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