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. 2014 Mar 3;8:24. doi: 10.3389/fncom.2014.00024

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Copyright © 2014 Russo, D'Andola, Portone, Lacquaniti and d'Avella.

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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Temporal decomposition of phasic muscle patterns. (A) R² curve for subject 1 obtained by temporal decomposition using NMF. (B) The four temporal generators selected for subject 1. (C) Example of the reconstructions of muscle patterns for six movement conditions of subject 1 obtained with the generator illustrated in panel (B) (shaded area: original data, thick line: reconstructed data, bottom: muscle-specific weights of each generator).