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. 2022 Nov 3;16:1011463. doi: 10.3389/fnhum.2022.1011463

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Copyright © 2022 Liu, Fu, Wei, Ma, Cui, Shan and Zhang.

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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Time—frequency maps displaying significant event-related desynchronization (ERD) (blue) and event-related synchronization (ERS) (red), two motor imagery (MI) (left and right) task, two group (lower limb amputees and healthy controls), and five channels (C3, C1, Cz, C2, C4). Maps displaying group averaged power (ERD, ERS) in the 1–30 Hz band during two motor imagery tasks (second –2 to 5 s of the trial). Left, left-side MI task; right, right-side MI task.