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. 2014 Mar 31;5:38. doi: 10.3389/fneur.2014.00038

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Copyright © 2014 Johansson, Domellöf and Rönnqvist.

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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Examples of 3D movement displacement during unimanual light-switch task performance (starting from resting and sequentially moving to the top button, the middle button, and the bottom button) with corresponding velocity profiles from the wrist marker for Case III at the Pre (A1,B1) and Post1 (A2,B2) occasion, and for a 12-year-old, typically developing (TD) comparison child (A3,B3). The small circles in the velocity profiles denote the start/stop of a movement unit (MU) corresponding to 31 MUs/10 s duration in B1, 16 MUs/6.4 s duration in B2, and 4 MUs/1.3 s duration in B3.