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. 2012 Dec 28;6:339. doi: 10.3389/fnhum.2012.00339

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Copyright © 2012 Tagliazucchi, von Wegner, Morzelewski, Brodbeck and Laufs.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in other forums, provided the original authors and source are credited and subject to any copyright notices concerning any third-party graphics etc.

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Anatomical regions (or nodes) ranked according to the number of connections attached to them which correlate with EEG power fluctuations in different frequencies. In the inset, the regions corresponding to the top quintile of the distribution—denoted as Q(D, 0.8)—are displayed overlaid on a standard MNI T1 template. The horizontal dashed line indicates the mean of the distribution. Results are for the group of subjects undergoing vigilance transitions between wakefulness and light sleep.