Motor imagery effectiveness for mirror reversed movements |
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Authors: | Ursula Debarnot Gaetano Valenza Stéphane Champely Enzo Pasquale Scilingo Danilo De Rossi Aymeric Guillot |
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Affiliation: | 1.Interdepartmental Research Centre E. Piaggio, School of Engineering,University of Pisa,Pisa,Italy;2.Centre de Recherche et d’Innovation sur le sport, EA 647, Laboratoire de la Performance Motrice, Mentale et du Matériel,Université Claude Bernard Lyon 1, Université de Lyon,Lyon,France |
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Abstract: | Physical practice is known to enhance motor adaptation skills, which refer to the individual ability to compensate for environmental changes. So far, it is still unknown whether a similar effect can be observed following motor imagery (MI). Thirty-nine participants were tested during a joystick tracking task under both normal and mirror conditions (i.e., the inductive direction of the joystick was reversed), before and after a physical practice or MI training phase. Eye movements and electromyographic activity were recorded during MI. Motor performance was also evaluated after a 6 h interval during daytime. As compared to the control group, the results revealed that both MI and physical practice improved motor performance in the mirror condition, during the post-training test. Furthermore, the time to complete the task was further reduced after 6 hours, both in the normal and mirror conditions. These results demonstrate the effectiveness of MI for learning mirror-reversed movements, and for the consolidation process that follows motor adaptation. |
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