Stabilization of spiral wave and turbulence in the excitable media using parameter perturbation scheme

This paper proposes a scheme of parameter perturbation to suppressthe stable rotating spiral wave, meandering spiral wave andturbulence in the excitable media, which is described by themodified Fitzhugh--Nagumo (MFHN) model. The controllable parameter inthe MFHN model is perturbed with a weak pulse and the pulse periodis decided by the rotating period of the spiral waveapproximatively. It is confirmed that the spiral wave and spiralturbulence can be suppressed greatly. Drift and instability ofspiral wave can be observed in the numerical simulation tests beforethe whole media become homogeneous finally.