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. 2022 Oct 6;16:956315. doi: 10.3389/fnsys.2022.956315

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Copyright © 2022 Soleimani, Towhidkhah, Oghabian and Ekhtiari.

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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(A) Functional activation before and after tDCS. Normalized beta values (Z score) obtained from first-level general linear models for each individual in PFC nodes are visualized pre- and post-tDCS. (B) Electric field components. Tangential and normal components of the electric fields in PFC nodes are extracted for each individual. (C) Association between changes in neural activation and electric fields. A Scatter plot for the PFC node in DMN showed a significant correlation between changes in neural activation and the tangential component of the electric field. Bars show average values, and error bars indicate standard errors.