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Adaptation

In the frame of movement control, sensori-motor adaptation is a type of motor plasticity which leads to a progressive modification of goal-directed movements when systematic movement errors occur, whether such errors result from slow physiological modifications (growth/development, aging) or pathological alterations of neuro-muscular structures or sense organs, or from physical changes of the interface with our environment (spectacles, ortheses). By comparison to motor learning, which is characterized by the acquisition of new motor skills, adaptation is defined as the optimization and automatization of existing motor behaviours. Adaptation also differs from learning by the contribution of implicit and unconscious mechanisms involved in error processing and in updating of neural motor representations (internal models).

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