Network-level developmental changes across the first six years of life. Across all age spans, limbic and subcortical networks consistently show the most change, followed by higher-order networks, with primary sensory networks showing the least change over time. Ranked means are shown for the eight networks examined: visual network (VN; dark purple), somatomotor network (SMN; blue), dorsal attention network (DAN; dark green), ventral attention network (VAN; light purple), limbic network (LN; light green), frontoparietal network (FPN; orange), default mode network (DMN; red), and subcortical network (SCN; gray). Larger values indicate greater changes observed; mean values are plotted with standard error of the mean. (For interpretation of the references to colour in the Figure, the reader is referred to the web version of this article).