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. 2022 Jun 1;12:9117. doi: 10.1038/s41598-022-13229-7

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© The Author(s) 2022

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Directed coupling strengths for prevailing anxiety (HA11 group) in the LF and IMF bands. Note the significant flows from MFG (ROI 7) to PCG (ROI 1) and from rostral pons structures (ROI 93) to the PCG (ROI 1) (marked by stippled circles). Also of interest are the significant flows from the MFG and the brainstem (ROI 93) to RRI (marked by stippled circles). For further explanation see Fig. 2.