http://journals.humankinetics.com/mc-current-issue/mc-volume-17-issue-4-october/drift-and-diffusion-in-movement-adaptation-to-space-time-constraints
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.
Keywords: speed and accuracy trade-off, multiple time-scale, motor learning
Keywords: speed and accuracy trade-off, multiple time-scale, motor learning
Authors: Yeou-Teh Liu, Tsung-Yu Hsieh, Karl M. Newell
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