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Implicit motor learning within three trials
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DOI：10.1038/s41598-021-81031-y.png)
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Abstract
En 中文
In motor learning, the slow development of implicit learning is traditionally taken for granted. While much is known about training performance during adaptation to a perturbation in reaches, saccades and locomotion, little is known about the time course of the underlying implicit processes during normal motor adaptation. Implicit learning is characterized by both changes in internal models and state estimates of limb position. Here, we measure both as reach aftereffects and shifts in hand localization in our participants, after every training trial. The observed implicit changes were near asymptote after only one to three perturbed training trials and were not predicted by a two-rate model's slow process that is supposed to capture implicit learning. Hence, we show that implicit learning is much faster than conventionally believed, which has implications for rehabilitation and skills training.
Keywords:
SENSORIMOTOR ADAPTATION
VISUOMOTOR ADAPTATION
EXPLICIT STRATEGY
REACH ADAPTATION
RECALIBRATION
CONSEQUENCES
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