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. 2018 Nov 12;12:418. doi: 10.3389/fnhum.2018.00418

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Copyright © 2018 Fonseca, Kerick, King, Lin and Jung.

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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Brain network changes for fatigued drivers (grand averages for DPs between 2 and 4) in the sleep-related fatigue levels NO (good quality sleep) and HR (poor quality sleep). The Frontal Midline and Parietal Midline areas were considered sources (red filled circles) of the effective connectivity and the CCM-power correlations were analyzed. Augmentation and suppression in the neural rhythms are indicated respectively by up and down arrows. The red circles indicate target areas with different spectral activity (augmentation-suppression) between levels.