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. 2019 Jun 11;11:138. doi: 10.3389/fnagi.2019.00138

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Copyright © 2019 Müller, Jirsa, Perdikis, Sleimen-Malkoun, von Oertzen and Lindenberger.

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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Modular organization of the HFNs and its changes across the lifespan. (A) Modular organization of the HFNs displayed for four exemplary networks or time windows. Module affiliation is indicated by color. Note that community structures are organized according to the principle of frequency allocation and frequency interaction, i.e., nodes or electrodes that share the same oscillation frequency or stay at a simple ratio (e.g., 1:2 or 1:4) mostly belong to the same community. (B) Changes of Q-values and number of modules (NofM) across the lifespan. (C) Temporal changes of similarity and variation of modular organization measured by nMI and nVI across the lifespan. (D) Correlation plots for the correlations between number of modules (NofM) and PS scores as well as correlations of WFC and CFC strengths with nMI and nVI indices.