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. 2018 Oct 17;10:298. doi: 10.3389/fnagi.2018.00298

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Copyright © 2018 Huo, Zheng, Li, Wang 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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The two-back performance at pretest and posttest for the anodal transcranial direct current stimulation and sham stimulation groups. The plots display the mean accuracy rate (A) and mean reaction time (RT; B) in each group (anodal transcranial direct current stimulation and sham transcranial direct current stimulation) at pretest and posttest. Error bars represent standard errors of the mean. atDCS, anodal transcranial direct current stimulation.