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Motor Skill Adaptation Depends On the Level of Learning

Authors: Michele Viviene Carbinatto, Herbert Ugrinowitsch, Suziane Peixoto dos Santos-Naves, Rodolfo NovellinoBenda, Go Tani


An experiment was conducted to examine the effect of the level of performance stabilization on the human adaptability to perceptual-motor perturbation in a complex coincident timing task. Three levels of performance stabilization were established operationally: pre-stabilization, stabilization, and super-stabilization groups. Each group practiced the task until reached its level of stabilization in a constant sequence of movements and under a constant time constraint before exposure to perturbation. The results clearly showed that performance stabilization is a pre-condition for adaptation. Moreover, variability before reaching stabilization is harmful to adaptation and persistent variability after stabilization is beneficial. Moreover, the behavior of variability is specific to each measure.

Keywords: Adaptation, Stabilization, perturbation, motor skill

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