< Back to Article

Perturbations both trigger and delay seizures due to generic properties of slow-fast relaxation oscillators

Fig 9

Isochrons and PRCs for the reduced epileptor.

For the sets of parameters and in Table 1 we show: Limit cycle Γ₊, Γ₀ and Γ₋ and its isochrons (left). The phase response curves for pulses in the v direction for different values of A (right). For the three cases we plot 16 equispaced isochrons. Consistently with our previous analysis, since the monotonicity of the slow vector field does not change, the slope of isochrons does not change sign. For numerical details about the computation of both the isochrons and the PRCs see Materials and methods section.

doi: https://doi.org/10.1371/journal.pcbi.1008521.g009