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arXiv 0909.4398nlin.PSphysics.bio-phq-bio.TO
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非均匀激发介质中螺旋波的异常漂移

Anomalous drift of spiral waves in heterogeneous excitable media

S. Sridhar, Sitabhra Sinha, Alexander. V. Panfilov

摘要:

我们研究了螺旋波在一个简单的模型中的非均匀可激发介质中的漂移,局部激发性或细胞耦合的梯度。对于第一次,我们报告的异常漂移的螺旋波向具有较高的兴奋性的地区,在所有早期的观察反应扩散模型的可激发介质。这种异常漂移可以促进复杂时空模式的发生,例如,导致危及生命的心律不齐的心脏。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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