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. 2018 May 30;8:8391. doi: 10.1038/s41598-018-26780-z

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© The Author(s) 2018

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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Task coding function of temporal muscle synergies. (A) The four temporal synergies extracted from the single-trial EMG data of an example subject. The four synergies are successive in time covering the full movement duration. (B) Confusion matrices illustrating how well each one of the four temporal synergies (organized in rows) can discriminate the starting point (top), direction (middle) and endpoint of the movement. (C) Percentages of correctly decoded trials (% correct) and percentages of the information about each one of the three “temporal” task parameters (starting point, direction and endpoint) carried by the four temporal synergies.