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Motor learning reduces eye movement variability through reweighting of sensory inputs.


ABSTRACT: Motor learning can improve both the accuracy and precision of motor performance. We analyzed changes in the average trajectory and the variability of smooth eye movements during motor learning in rhesus monkeys. Training with a compound visual-vestibular stimulus could reduce the variability of the eye movement responses without altering the average responses. This improvement of eye movement precision was achieved by shifting the reliance of the movements from a more variable, visual signaling pathway to a less variable, vestibular signaling pathway. Thus, cerebellum-dependent motor learning can improve the precision of movements by reweighting sensory inputs with different variability.

SUBMITTER: Guo CC 

PROVIDER: S-EPMC3064501 | biostudies-literature | 2010 Dec

REPOSITORIES: biostudies-literature

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Motor learning reduces eye movement variability through reweighting of sensory inputs.

Guo Cong C CC   Raymond Jennifer L JL  

The Journal of neuroscience : the official journal of the Society for Neuroscience 20101201 48


Motor learning can improve both the accuracy and precision of motor performance. We analyzed changes in the average trajectory and the variability of smooth eye movements during motor learning in rhesus monkeys. Training with a compound visual-vestibular stimulus could reduce the variability of the eye movement responses without altering the average responses. This improvement of eye movement precision was achieved by shifting the reliance of the movements from a more variable, visual signaling  ...[more]

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