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. 2014 Oct 30;7(2):31–56. doi: 10.14802/jmd.14008

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Copyright © 2014 The Korean Movement Disorder Society

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 9. — Sequential water swallowing (SWS) with foreburst. Upper four traces: SWS from a normal adult subject. The first channel is the submental electromyogram (SM-EMG), the second is the nasal cannula, the third is the electrocardiogram and the fourth is the electrodermal activity. The “Foreburst” occurs with the last respiratory cycle before the apnea interval. Lower three traces: SWS from another normal adult subject. The foreburst (lined) occurs concurrently with the last respiratory activity, and the evoked skin potentials appears slightly later in two cases[63].