Figure 5. .

Nodes in a default mode subnetwork drove community bifurcation via strong increases in coherence. (A) The newly formed functional community on Days 22–24 contained 65 nodes that belonged to the community on all three days. The functional–anatomical network and subnetwork affiliations of these nodes are shown on the left and right, respectively. The new community contained 31 DMN nodes, 12 temporoparietal nodes, and 9 limbic nodes. (B) The edges that exhibited large weight changes from Day 21 to Day 22 (top 5% of changes, left) were predominantly within-network connections between DMN network nodes (104/466). Examining subnetwork structure reveals that all of the strongly enhanced connections between nodes in the DMN belonged to subnetwork B, indicating that this subnetwork, which consists of regions in prefrontal cortex, drove the default mode core community bifurcation at ovulation.