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. 2014 Sep 5;5:979. doi: 10.3389/fpsyg.2014.00979

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Copyright © 2014 Ramseyer and Tschacher.

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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(A) Original video recording; (B) Difference-image derived by motion energy analysis; (C) Definition of regions of interest; (D) Time-series (35 s shown) of raw movement for each defined region of interest.