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Sleepiness promotes widespread increases in functional connectivity.

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posted on 05.11.2015, 03:33 by Diederick Stoffers, B. Alexander Diaz, Gang Chen, Anouk den Braber, Dennis van ‘t Ent, Dorret I. Boomsma, Huibert D. Mansvelder, Eco de Geus, Eus J. W. Van Someren, Klaus Linkenkaer-Hansen

A total of eleven combinations of ICNs and ARSQ dimensions showed significant associations between functional connectivity and ARSQ score at a cluster-wise Bonferroni-corrected significance threshold of PFWE = .00025. Orthogonal slices through the peak voxel are shown on the left of each panel; ICNs are defined by the ICA spatial maps thresholded at Z = 2.3 and displayed in green, clusters of voxels showing significant associations (2.62 < t < 6) in a gradient from red to yellow, overlaid on a standard brain template in radiological convention (left = right). Number of significant voxels, maximum t-statistic and peak voxel coordinates are displayed at the top right, scatter plots showing the mean functional connectivity value in significant clusters (y-axis) plotted against the relevant ARSQ measure are shown in the bottom right of each panel.

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