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. 2017 Feb 7;11:20. doi: 10.3389/fnbeh.2017.00020

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Copyright © 2017 Babiloni, Del Percio, Lopez, Di Gennaro, Quarato, Pavone, Morace, Soricelli, Noce, Esposito, Gallese and Mirabella.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution and 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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Mean values (±SE) of the event-related phase-amplitude cross-frequency lagged connectivity (ErCFLC) values in the BA6-BA44/45 pair in the EXECUTION and the OBSERVATION condition. These values were computed for two directions and three coupled frequency bands. ErCFLC values were always positive in the EXECUTION condition, and near to zero in the OBSERVATION condition (see text for more details). Noteworthy, the t-tests showed that ErCFLC values were greater during the EXECUTION compared to the OBSERVATION only in the direction from BA6 to BA44/45 (delta/theta → alpha (t = 3.89; p = 0.005; one-tailed), delta/theta → beta (t = 3.00; p = 0.014; one-tailed) and delta/theta → gamma (t = 3.45; p = 0.009; one-tailed)).