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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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Correlations between the BCI accuracies and ERD/ERS values in the 8–30 Hz band. (A) The correlation between CP1 ERD and the ipsilesional hemispheric BCI accuracies (r = −0.552, p = 0.041, n = 14). (B) The correlation between CP2 ERD and the bilateral hemispheric BCI accuracies (r = −0.543, p = 0.045, n = 14). (C) The correlation between C4 ERD and the bilateral hemispheric BCI accuracies (r = −0.582, p = 0.029, n = 14). (D) The correlation between C4 ERD and the contralesional hemispheric BCI accuracies (r = −0.657, p = 0.011, n = 14).