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. 2017 Mar 27;11:147. doi: 10.3389/fnhum.2017.00147

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Copyright © 2017 Ikeda, Nozawa, Yokoyama, Miyazaki, Sasaki, Sakaki and Kawashima.

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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Results of coherence analysis. (A) Coherence differences when using cerebrally unique responses (brain) obtained by regressing out the skin blood flow. Each line and shading (red or blue) indicates the mean and the standard error of the mean of the coherence difference (Δ = sound–no-sound) during walking or stepping for all periods, respectively. Asterisks show the significant interaction effects by two-way repeated-measures analysis of variance (ANOVA; walking/stepping × sound/no-sound). To correct for multiple testing for all periods, false discovery rate correction (FDR, q = 0.05) was used. (B) Coherence differences when using skin blood flow data. No significant interaction effects were observed (FDR, q = 0.05).