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. 2017 Oct 26;43(1):23–35. doi: 10.1007/s10484-017-9383-z

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© The Author(s) 2017

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 1 — A Experimental procedure. a The subject is not performing any activity; b a cue is displayed and its location shows what movement should be imagined by the subject after the task starts; c time for preparing to begin the task; the subject is not performing any activity; d X sign starts the imagery task; e the subject imagines the movement of clenching his/her right or left hand, in accordance with the cue; f end of the imagery task. B Signal processing scheme (offline mode)