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. 2014 Dec 16;11:165. doi: 10.1186/1743-0003-11-165

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© Witkowski et al.; licensee BioMed Central Ltd. 2014

This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Hand exoskeleton-closing motions in % relative to a full closing motion during EEG control (condition #1, left side) and hybrid EEG/EOG BNCI control (condition #2, right side) averaged across all participants while green or red squares were presented. Participants were instructed to close the hand exoskeleton during green square presentations (black circles/crosses), and not to move during red square presentations (red circles/crosses). All participants were able to successfully close the device and reached successful control during green square presentations. However, during condition #1, the safety threshold (set at 25% closing motions during red square presentations) was often exceeded, but only once under condition #2.