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. 2015 Mar 22;34(1):13. doi: 10.1186/s40101-015-0049-3

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© Motomura et al.; licensee BioMed Central. 2015

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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GFP and grand-mean ERP waveform. The upper graph shows the GFP waveform, and under the graph are all electrodes averaged in the grand-mean ERP waveform. GFP fluctuated with the overlapping components of the grand-mean ERP. We performed GFP analysis by dividing GFP into four time windows: N1 (80 to 150 ms), P2 (150 to 220 ms), N2 (220 to 300 ms), and P3 (300 to 600 ms). GFP = global field power; ERP = event-related potential.