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. 2021 Aug 20;4:674238. doi: 10.3389/frai.2021.674238

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Copyright © 2021 Vargas-Calixto, Warrick and Kearney.

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) and the copyright owner(s) 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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Contour plots of the median $A U C_{D U S}$ of the (A) LF, (B) MF, (C) HF, (D) LF/(MF + HF), and (E) ApEn features for varying AC window length (horizontal axis) and SNR (vertical axis). The $A U C_{D U S}$ are coded in colors white (0.65), and red (0.85) according to their magnitude. For visualization, 5 isolines are used in each panel.