Fig. 7

Cobwebbing diagram of the 2D map (3.24) for two identical cells ($P_0=Q_0$) and distinct synaptic plasticity profiles ($P_{\mathrm{A}}=150$, $P_{\mathrm{B}}=190$) shown in two coordinate systems. The period $P_1$ and the intrinsic phase ${\varphi }_1$ of neuron A in cycle 1 is obtained by evaluating the initial condition $({\varphi }_0,P_0)$ on the period surface $P_{n+1}={\Pi }_2({\varphi }_n,P_n)$ (a) and the phase surface ${\varphi }_{n+1}={\Pi }_1({\varphi }_n,P_n)$ (b). The point $({\varphi }_1,P_1)$ is then projected back to the x–y axis in both coordinate systems and mapped to the point $({\varphi }_2,P_2)$ with the same procedure. Lines with one arrow correspond to the first and lines with two arrows correspond to the second iteration