Fig. 4
Conditional means as functions of \(I_{ext}\) of the TF amplitude, A (Eq. 8), and the interpulse frequency, \(\nu \equiv 1/\tau\), (\(A_{TF}\) and \(\overline{\nu }\), respectively, depicted with solid curves in (a) and (b)), and inverse of the conditional mean of the interpulse time, \(\tau\) (\(1/T_{IP}\), depicted with a dashed curve in (b)) and corresponding CDFs of A (c) and \(\nu\) (d) derived using the \(I_{ext}\) distributions of Fig. 2a with \(\alpha =1.2\) (solid line), \(\alpha =1.4, 2\) (dashed lines), \(\alpha = 2.4\) (dashed-dotted line) and \(\alpha =3\) (dotted line). The parameters used for the \(I_{ext}\)-TF mappings are \(EC_{50}=0.5\) and \(h=8\) in (a) and (c) (same parameters as the curve with solid circles in Fig. 3a) and \(T_{{\text{min}}}=5\,{\text{min}}\), \(b=4\) and \(\kappa =9\) in (b) and (d) (same parameters as the curve with open squares in Fig. 3c) .
