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. 2021 Mar 3;11:5029. doi: 10.1038/s41598-021-84595-x

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© The Author(s) 2021

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 licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence 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 licence, visit http://creativecommons.org/licenses/by/4.0/.

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Scree-plots of the PCA on the 18 items selected for the embodiment scale. The upper panel referred to the synchronous stimulation condition, and the lower panel referred to the asynchronous stimulation condition. The eigenvalues of each component are reported in the tables below the respective graph. The black dots represent the eigenvalues of each component in decreasing order. The red line shows the simulated data of the parallel analysis.