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. 2017 May 16;30(4):417–433. doi: 10.1007/s10548-017-0568-9

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© The Author(s) 2017

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 4 — Butterfly plots for the averaged signals of spikes marked on EEG or MEG (upper), only from EEG (middle row), and only from MEG (bottom row). The numbers of spikes averaged for each group are given in parentheses. In butterfly plots (left column) MEG is shown by green and EEG by blue lines. MGFP stands for mean global field power and is given for EEG and MEG. The topographies are shown at 0 ms (close to the peak of the spike) and −23 ms (the preceding peak on MEG) as indicated by dashed lines on the butterfly plots. (Color figure online)