Triggering synchronized oscillations through arbitrarily weak diversity in close-to-threshold excitable media.
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.
Boschi
C Degli Esposti
CD
Departamento de Física Aplicada and Unidad Asociada of the Consejo Superior de Investigaciones Científicas, Universidad de Alicante, Apartado 99, E-03080 Alicante, Spain.
Louis
E
E
Ortega
G
G
D055592:Biophysical Phenomena; D001703:Biophysics; D015233:Models, Statistical; D008962:Models, Theoretical; D009991:Oscillometry; D013997:Time Factors