Figure 4

Response of the IFFL to periodic stimulation in function of σ and τ. Average response <Z > _T is plotted in function of σ and τ for an I1FFL motif (Fig 1. (c)) stimulated by a pulsatile signal. Parameters σ and τ are expressed in 1/α units and <Z > _T in fraction of $\kappa =\frac{\beta }{\alpha }$. Threshold parameter is chosen as θ = 0.8 κ. This surface plot of <Z > _T is analytically computed by using eq.(10) given in the Additional File 1.