标题： 螺旋波在非均匀可兴奋介质中的异常漂移 显示英文标题

标题： Anomalous drift of spiral waves in heterogeneous excitable media

摘要： 我们研究了在具有局部兴奋性或细胞耦合梯度的异质兴奋介质简单模型中的螺旋波漂移。 首次，我们报告了螺旋波向具有更高兴奋性的区域漂移的异常现象，这与之前在兴奋介质反应-扩散模型中的所有观察结果相反。 这种异常漂移可能会促进复杂时空模式的发生，例如那些导致心脏致命心律失常的模式。 显示英文摘要

摘要： We study the drift of spiral waves in a simple model of heterogeneous excitable medium, having gradients in local excitability or cellular coupling. For the first time, we report the anomalous drift of spiral waves towards regions having higher excitability, in contrast to all earlier observations in reaction-diffusion models of excitable media. Such anomalous drift can promote the onset of complex spatio-temporal patterns, e.g., those responsible for life-threatening arrhythmias in the heart.