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. 2019 Feb 6;10:69. doi: 10.3389/fphys.2019.00069

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Copyright © 2019 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(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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Visual evoked potentials (VEPs) in the checker board task. The amplitudes of the VEPs’ evolution for the occipital lobe at O1, Oz, and O2 (grand average across all participants) are displayed. For each electrode position the two conditions with the three phases of checker board presentation (VEP-1, VEP-2, and VEP-3) are contrasted.