Figure 2.

Schematics of (A) distance-dependent coupling and (B) probability-dependent coupling models. Blue dots refer to neurons in the core, and red dots refer to neurons in the shell. Red/blue lines represent intra-subpopulation couplings within the core and the shell, while black dashed lines characterize inter-subpopulation couplings between the core and the shell. In the distance-dependent model, neurons in the shell sense signals from the core neurons within the threshold distance. In the probability-dependent network, neurons in the shell receive signals from the shell randomly depending on the probability.