Figure 6.

Synchronization dynamics of the SCN during constant darkness. Circadian dynamics of VIP (A) without any inter-neuronal coupling, (B) with intra-subpopulation coupling, (C) with intra-subpopulation and inter-subpopulation coupling (with probability P _PT =0.3 ). Circadian dynamics of AVP (D) without any inter-neuronal coupling, (E) with intra-subpopulation coupling, (F) with intra-subpopulation and inter-subpopulation coupling (with probability P _PT =0.3 ). (G, I): period distributions of the core and the shell under three coupling conditions. (H, J): phase distribution of the core and the shell under three coupling conditions. Blue curves: distributions without any inter-neuronal coupling. Red curves: distributions with intra-subpopulation coupling. Yellow curves: distributions with both intra-subpopulation and inter-subpopulation coupling.