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. 2017 May 16;11:262. doi: 10.3389/fnins.2017.00262

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Copyright © 2017 Chella, D'Andrea, Basti, Pizzella and Marzetti.

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) or licensor 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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Box plots for the relative error for antisymmetric cross-bicoherence ( $R E_{a c b}^{X}$ ) evaluated with different EEG reference schemes and with different EEG electrode densities. The ordinate axis is logarithmically scaled. Each box plot displays the RE-values from 1,000 simulation repetitions.