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. 2019 Jan 18;9:205. doi: 10.1038/s41598-018-36358-4

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© The Author(s) 2019

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as 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. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Spearman rank correlation between rated degree of performances and performers’ body sway coupling. The scatter plots in the upper panel represent the Granger-coupling (indexed by CD) of body sway, and plots in the lower panel represent the correlational-coupling (indexed by mean cross-correlation coefficient). Each dot or cross represents the performance of a trial. The dots represent the performers’ self-rated results, and the crosses represent the judges’ rated results. Only the rank correlation coefficients (r_s) and the p-values (p) of the significant correlations are shown.