Osipov G V, Collins J J
Center for BioDynamics and Department of Biomedical Engineering, Boston University, 44 Cummington Street, Boston, Massachusetts 02215, USA.
Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics. 1999 Jul;60(1):54-7. doi: 10.1103/physreve.60.54.
Here we propose mechanisms for suppressing non-steady-state motions--propagating pulses, spiral waves, spiral-wave chaos--in excitable media. Our approach is based on two points: (1) excitable media are multistable; and (2) traveling waves in excitable media can be separated into fast and slow motions, which can be considered independently. We show that weak impulses can be used to change the values of the slow variable at the front and back of a traveling wave, which leads to wave front and wave back velocities that are different from each other. This effect can destabilize the traveling wave, resulting in a transition to the rest state.
在此，我们提出了抑制可激发介质中非稳态运动——传播脉冲、螺旋波、螺旋波混沌——的机制。我们的方法基于两点：（1）可激发介质是多稳态的；（2）可激发介质中的行波可分为快速和慢速运动，这两种运动可独立考虑。我们表明，微弱脉冲可用于改变行波前后慢变量的值，这会导致波前和波后速度彼此不同。这种效应会使行波失稳，从而导致向静止状态的转变。
