title: Triggering synchronized oscillations through arbitrarily weak diversity in close-to-threshold excitable media.
abstract: It is shown that an arbitrarily weak (frozen) heterogeneity can induce global synchronized oscillations in excitable media close to threshold. The work is carried out on networks of coupled van der Pol-FitzHugh-Nagumo oscillators. The result is shown to be robust against the presence of internal dynamical noise.
authors.affiliation: Departamento de Física Aplicada and Unidad Asociada of the Consejo Superior de Investigaciones Científicas, Universidad de Alicante, Apartado 99, E-03080 Alicante, Spain.
authors.forename: C Degli Esposti
authors.initials: CD
authors.lastname: Boschi
authors.forename: E
authors.initials: E
authors.lastname: Louis
authors.forename: G
authors.initials: G
authors.lastname: Ortega
mesh_terms: D055592:Biophysical Phenomena; D001703:Biophysics; D015233:Models, Statistical; D008962:Models, Theoretical; D009991:Oscillometry; D013997:Time Factors