Fig. 2.

(A) Proportions of short- (<30 mm), medium- (30–90 mm), and long-range (>90 mm) connections belonging to different topological classes. (B) Contributions to network density and network cost of local, feeder, and rich club connections. (C) Nodes are depicted on a ring, organized according to minimization of the inverse of network cost, placing nodes of low connectivity cost in close proximity on the ring (SI Materials and Methods). “% of cost” expresses the proportion of total network cost taken on by connections in close proximity on the ring (proximal) and by connections placed on different parts of the ring (distal connections). cing, posterior and anterior cingulate cortex; insula, insular cortex; phip, parahippocampal; prec, precuneus; sf, superior frontal cortex.