Figure 6.

Weighted net causal outflow for within-network directed functional connectivity analysis. (A) Weighted net causal outflow in nodes of the central executive network and two thalamic regions (left, right). (B) Weighted net causal outflow in nodes of the salience network and two thalamic regions (left, right). (C) Weighted net causal outflow for default mode network and two thalamic regions (left, right). Weighted net causal outflows were significantly different in nodes in each of the three RSNs for young and elderly group (P < 0.05 is indicated by “^*,” P < 0.01 is indicated by “^**,” no significant difference is indicated by “NS”).