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. 2021 Feb 3;14:605190. doi: 10.3389/fnhum.2020.605190

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Copyright © 2021 Schommartz, Dix, Passow and Li.

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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Stimulation-dependent modulation of behavioral performance for the two experimental conditions. Mean values (error bars indicate 1 standard error (SE) of the mean, *p < 0.05 for post-hoc multiple comparisons after Holm correction) are indicated for (A) response times in milliseconds (ms) and (B) the proportion of optimal choices in percent (%) both separated for the two experimental conditions (immediate vs. delayed reward) for participants, who received bilateral active transcranial direct current stimulation (tDCS; red) compared with sham stimulation (blue).