Excitable media comprise a class of models for a wide range of physical, chemical, and
biological systems that exhibit spontaneous formation of spatial patterns. Patterns in …

Interruptions in nonlinear wave propagation, commonly referred to as wave breaks, are
typical of many complex excitable systems. In the heart they lead to lethal rhythm disorders …

Lethal cardiac arrhythmias often involve the occurrence of spiral waves, whose control is
essential for the treatment of the disease. While high-voltage shock-based control methods …

It has recently been observed that the occurrence of sudden cardiac death has a close
statistical relationship with the time of day, viz., ventricular fibrillation is most likely to occur …

The present paper considers a feedback control method for suppressing spirals and
spatiotemporal chaos in a two-dimensional excitable medium. This method uniformly …