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. 2017 Jun 28;11:340. doi: 10.3389/fnhum.2017.00340

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Copyright © 2017 Gärtner, Irrmischer, Winnebeck, Fissler, Huntenburg, Schroeter, Bajbouj, Linkenkaer-Hansen, Nikulin and Barnhofer.

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) or licensor 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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Depressive patients exhibit stronger long-range temporal correlations (LRTC) in theta oscillations compared to healthy controls. Topographic distributions of the DFA exponents point to strongest LRTC in theta oscillations in the parietal region both in depressive patients (A) and healthy controls (B). (C) The difference topography (controls minus patients) indicates that patients had stronger LRTC in many cortical areas. Cluster-based permutation statistic revealed a significant cluster in left temporal and frontal regions (cluster-electrodes are marked with a star). (D) Mean exponent values at a central cluster-electrode (FC5, t-statistic, *p < 0.05).