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. 2014 Jul 3;8:237. doi: 10.3389/fnbeh.2014.00237

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Copyright © 2014 Ly, Huys, Stins, Roelofs and Cools.

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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Left: Center of pressure (COP) displacement of a representative leftward step. Right: Velocity profile of the step shown in the left panel. Arrow indicates the moment that was defined as the reaction time.