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. 2020 Oct 6;11:555733. doi: 10.3389/fneur.2020.555733

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Copyright © 2020 Gao, Guo, Chu, Yu, Chen, Chen, Li, Yang, Yang, Du, Li and Chan.

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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Results of regional time course analyses for ROIs. The regional time course analyses for ROI #1, ROI #2, and ROI #3 revealed the significant interaction effect between Group x Time on the average % MR signal changes elicited in the upper limb motor imagery task across time points 0–12 s in the contrast of the HC group vs. the SCI group: (A) ROI #1, the left middle frontal gyrus [F_{(2.574, 54.062)} = 3.500, p = 0.027]; (B) ROI #2, the left precentral gyrus [F_{(3.373, 74.198)} = 2.858, p = 0.037] and (C) ROI #3, the right medial frontal gyrus [F_{(3.826, 84.177)} = 4.985, p = 0.001]. *p < 0.05. The regional time course analyses for ROI #4 and ROI #5 revealed significant interaction effects between Group x Time on the average % MR signal changes elicited in the lower limb motor imagery task across time points 0–12 s in the contrast of the SCI group vs. the HC group: (D) ROI #4, right globus pallidus [F_{(3.214, 70.699)} = 2.792, p = 0.043]; (E) ROI #5, left lingual gyrus [F_{(3.287, 72.307)} = 4.575, p = 0.004]. *p < 0.05.