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. 2019 May 16;13:83. doi: 10.3389/fnbeh.2019.00083

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Copyright © 2019 Winker, Rehbein, Sabatinelli, Dohn, Maitzen, Roesmann, Wolters, Arolt and Junghoefer.

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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Spatio-temporal clusters with significant interactions of Stimulation × Valence. (A) An early to mid-latency cluster spanning right temporal, parietal, and frontal areas—including temporal parietal junction and superior temporal cortex—showed an activation pattern opposite to our hypothesis: after excitatory vmPFC-tDCS, sad faces showed relatively higher activation than happy faces and vice versa after inhibitory vmPFC-tDCS. (B) A mid-latency cluster at left orbitofrontal and temporal pole areas revealed an effect consistent with our hypothesis: after excitatory vmPFC-tDCS, happy faces showed increased activation in comparison to sad faces and vice versa after inhibitory vmPFC-tDCS. Bar graph insets indicate standard error of the mean (± SEM).