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. 2018 Apr 18;12:67. doi: 10.3389/fnbeh.2018.00067

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Copyright © 2018 Berger, Pixa, Steinberg and Doppelmayr.

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 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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Group averaged EEG activity in rest with eyes closed. Frequency spectrum (amplitude in μV) on P3 (left) and P4 (right) for the interval with eyes closed preceding tACS (T0 = black), immediately after tACS (T1 = red), 30 min after tACS (T2 = green) and 1 day after tACS (T3 = blue) for Sham (at the top), 10 Hz tACS (in the middle), 20 Hz tACS (at the bottom).