cohesive DMN, but rather that DMN regions are actually integrated into a different network structure in children than adults (Fair et al., 2009). Communities in children are organized by anatomical proximity, suggesting that the various parts of the DMN should be considered as participants in relatively separate functional modules, not as fragmented elements of an adult functional system. Naturally, a transition to adult-like structures must occur over development, as long-distance connections between PCC, MPFC, and other regions of the DMN strengthen, and short-distance relationships weaken. Yet to focus upon these internal changes without considering external relationships risks fundamentally misapprehending the developmental trajectory of the adult DMN regions.
