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. 2021 Nov 5;15:706630. doi: 10.3389/fnbot.2021.706630

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Copyright © 2021 Chen, Shu, Wang, Ding, Fu and Jia.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Study setup and experimental protocol. (A) The patient was seated in a chair in front of a screen. (B) Timeline of a single trial during the motor attempt (MA) task. (C) Timeline of a single trial during the motor imagery (MI) task.