system [@JAN03; @BAL04; @PRA07], of systems below a Hopf bifurcation [@SCH04b; @POM05a; @POT07; @FLU07] or below a global bifurcation [@HIZ06; @HIZ08], and of spatially extended reaction-diffusion systems [@STE05a; @BAL06; @DAH08]. Extensions to multiple time-delay control schemes have also been considered [@POM07; @SCH08a; @HOE07; @HOE08].

![\[fig:isi\_tau\] Control of synchronization: Interspike intervals vs. time delay $\tau_K$. Green dots: ratio of the interspike intervals $\langle T_1\rangle /\langle T_2\rangle $ of the two subsystems, black solid curve: $\langle T_1\rangle$, red dashed curve: $\langle T_2\rangle $. Panels (a), (b), and (c) correspond to the case of moderate ($C=0.2$, $D_1=0.6$), weak ($C=0.1$, $D_1=0.6$), and strong ($C=0.2$, $D_1=0.15$) synchronization, respectively. Other parameters: $a=1.05$, $\epsilon_1=0.005$, $\epsilon_2=0.1$, $C=0.07$, $\tau=0$, $D_2=0.09$, $K=1.5$.](fig05a.eps "fig:"){width="0.32\linewidth"} ![\[fig:isi\_tau\] Control of synchronization: Interspike intervals vs. time delay $\tau_K$. Green dots: ratio of the interspike intervals $\langle T_1\rangle /\langle T_2\rangle $ of the two subsystems, black solid curve: $\langle T_1\rangle$, red dashed curve: $\langle T_2\rangle $. Panels (a), (b), and (c) correspond to the case of moderate ($C=0.2$, $D_1=0.6$), weak ($C=0.1$, $D_1=0.6$), and strong ($C=0.2$, $D_1=0.15$) synchronization, respectively. Other parameters: $a=1.05$, $\epsilon_1=0.005$, $\epsilon_2=0.1$, $C=0.07$, $\tau=0$, $D_2=0.09$, $K=1.5$.](fig05b.eps "fig:"){width="0.32\linewidth"} ![\[fig:isi\_tau\] Control of synchronization: Interspike intervals vs. time delay $\tau_K$. Green dots: ratio of the interspike intervals $\langle 