Fig 1. Network organization is stable prior to the onset of adolescence.

(A) Group-averaged correlation matrices organized according to network affiliation. ROI order is consistent across all four groups. (B) Regions of interest imposed on a semitransparent brain. Normalized mutual information (NMI) is a measure of similarity between two sets of data. Here, NMI refers to the comparison between two sets of network affiliation vectors between each consecutive age group and between children and adults. (Data available at http://devrsfmri_2015.projects.nitrc.org/devrsfmri_2015.tar.bz2.)