Fig. 5.

Break-up of 3 clusters via intercluster hoppings for $J_0=10$. a Double-peaked IBI histogram. Vertical dotted lines denote integer multiples of the global period $T_G(\simeq 170.5$ msec) of $R_w(t)$. b Time series of membrane potential $x_5(t)$ for the 5th HR neuron in the 1st ($I=1$) cluster. For reference, the IWPBR $R_w(t)$ of the whole population is shown in the top panel. The 5th HR neuron exhibits a bursting at the 4th cycle of $R_w(t)$ rather than at its 3rd cycle where it shows a hopping instead of bursting, as shown inside the small box in the gray region (corresponding to the 3rd cycle). Sequential long-term raster plots of burst onset times in the whole population and in the Ith cluster ($I=$1, 2, and 3) in c1 the early, c2 the intermediate, and c3 the final stages. IWPBR $R_w(t)$ of the whole population and ISPBR $R_s^{(I)}(t)$ of the Ith cluster ($I=$1, 2, and 3) in the d1 early, d2 the intermediate, and d3 the final stages