Figure 4. Hyper-brain network coupling matrices and circle network representations for the three kissing conditions.

A: Coupling (aICI) matrices covering WFC and CFC between the 254 nodes of the kissing couple’s hyper-brain network under the three kissing conditions (RK, K-SA, and HK). B: The same networks as in A, represented in the form of a circle, where the nodes are in clockwise order. Note: The structure of the coupling matrices and the circle networks is the same as in Figures 1 and S2.