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. 2019 Jan 10;12:1009. doi: 10.3389/fnins.2018.01009

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Copyright © 2019 Schrooten, Vandenberghe, Peeters and Dupont.

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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Electroencephalography (EEG) analysis: topographic plots of the logarithm (base 10) of the mean squared amplitude of the fast Fourier transform (FFT) in the frequency range 15–25 Hz (top) and frequency × squared amplitude of the FFT curves of example electrodes F3/4, FC3/4 and C3/4 (bottom) for the mean of all five subjects, for the different recording conditions, as captured from our graphical user interface: EEG (A) recorded separately during the task ([EEG][fMRI]), (B) recorded in the scanner control room during rest ([EEG fMRI]_outside) (C) recorded inside the scanner during rest before image acquisition ([EEG fMRI]_{pre−acquisition}) and (D) recorded inside the scanner during the task with image acquisition ([EEG fMRI]).