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. 2016 Mar 11;10:22. doi: 10.3389/fnsys.2016.00022

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Copyright © 2016 Hwang, Agada, Kiemel and Jeka.

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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Comparison of the open-loop direct-effect FRF from sensory perturbations to weighted EMG signals. (A) gain ratio of direct-effect FRFs from vision to EMGs, (B) phase difference of direct-effect FRFs from vision to EMGs, (C) gain ratio of direct-effect FRFs from vibration to EMGs, (D) phase difference of direct-effect FRFs from vibration to EMGs. Open symbols represent significant differences between surface conditions and asterisks represent significant differences between two FRFs based on the bootstrap 95% CIs.