Fig 7. Theoretical analysis of resonance in phase change vs system dynamics.

Subfigures A and C show, for M = 512, that the mathematically predicted resonance in the phase change observed in Fig 6A depends strongly on the longest time constant in the system, τ_rec and on the vesicle release probability, P_v. Subfigures B and D show, for M = 512, that the period of the resonance has an approximately linear relationship with $\sqrt{{\tau }_{\text{rec}}}$ and $\sqrt{P_{\mathrm{v}}}$. Together, τ_rec and P_v determine the time course of depression, which determines phase.