
Resting state functional connectivity of MEG data was studied in 29 children (9-10 years old). The weighted phase lag index (WPLI) was employed for estimating connectivity and compared to coherence. To further evaluate the network structure, a graph analysis based on WPLI was used to determine clustering coefficient (C) and betweenness centrality (BC) as local coefficients as well as the characteristic path length (L) as a parameter for global interconnectedness. The network’s modular structure was also calculated to estimate functional segregation. A seed region was identified in the central occipital area based on the power distribution at the sensor level in the alpha band. WPLI reveals a specific connectivity map different from power and coherence. BC and modularity show a strong level of connectedness in the occipital area between lateral and central sensors.Cshows different isolated areas of occipital sensors. Globally, a network with the shortestLis detected in the alpha band, consistently with the local results. Our results are in agreement with findings in adults, indicating a similar functional network in children at this age in the alpha band. The integrated use of WPLI and graph analysis can help to gain a better description of resting state networks.
Male, Rest, Applications of graph theory, Systems biology, networks, Models, Neurological, central occipital area, Neural biology, Neural Pathways, Cluster Analysis, Humans, resting state functional connectivity, Child, Brain Mapping, Computational Biology, Magnetoencephalography, Reproducibility of Results, 600, Signal Processing, Computer-Assisted, graph analysis, Regression Analysis, Female, Nerve Net, Algorithms, Research Article
Male, Rest, Applications of graph theory, Systems biology, networks, Models, Neurological, central occipital area, Neural biology, Neural Pathways, Cluster Analysis, Humans, resting state functional connectivity, Child, Brain Mapping, Computational Biology, Magnetoencephalography, Reproducibility of Results, 600, Signal Processing, Computer-Assisted, graph analysis, Regression Analysis, Female, Nerve Net, Algorithms, Research Article
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