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. 2021 Sep 20;15:730322. doi: 10.3389/fnins.2021.730322

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Copyright © 2021 Wen, Ma, Dong, Sun, Lan, Yin, Qu, Liu, Xiao and Zeng.

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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Correlation analysis in some studies (Xiang et al., 2019; Liu et al., 2020). (A) The PCC-seeded FC was positively correlated with pain duration in the right inferior parietal lobule at baseline in LBP patients. (B) There was a significant correlation between ALFF change in the left insular and VAS change after acupuncture treatment. ALFF, amplitude of low-frequency fluctuation; FC, functional connectivity; LBP, low back pain; PCC, posterior cingulate cortex; VAS, visual analog scale/score.