# Solving Winfree's puzzle: the isochrons in the FitzHugh-Nagumo model.

@article{Langfield2014SolvingWP,
title={Solving Winfree's puzzle: the isochrons in the FitzHugh-Nagumo model.},
author={Peter Langfield and Bernd Krauskopf and Hinke M. Osinga},
journal={Chaos},
year={2014},
volume={24 1},
pages={013131}
}
We consider the FitzHugh-Nagumo model, an example of a system with two time scales for which Winfree was unable to determine the overall structure of the isochrons. An isochron is the set of all points in the basin of an attracting periodic orbit that converge to this periodic orbit with the same asymptotic phase. We compute the isochrons as one-dimensional… CONTINUE READING