物理学报Issue(23)：1-7,7.DOI:10.7498/aps.63.238201
细胞外钾离子浓度延迟恢复对螺旋波的影响研究∗
Study on the effect of delayed recovery of extracellular p otassium ion concentration on spiral wave
摘要
Abstract
Frequency-dependent changes in the extracellular potassium ion concentration have been added to the Luo-Rudy phase I heart model. Effects of the delayed restoration of extracellular potassium ion concentration on spiral waves are studied. Numerical simulation results show that due to the state of spiral wave, the delayed restoration of extracellular potassium ion concentration can lead to periodic oscillations of concentration, and the period and amplitude of the oscillation increase with the delayed recovery time, resulting in the emergence of various phenomena, such as the breathing spiral wave, the coexistence of multiple spiral waves, the meandering of spiral waves in the manner of Lévy flight, and the disappearance of spiral wave through different ways. These results are compatible with the experimental results.关键词
钾离子浓度/延迟/螺旋波/时空混沌Key words
potassium ion concentration/time delay/spiral wave/spatiotemporal chaos引用本文复制引用
乔成功,李伟恒,唐国宁..细胞外钾离子浓度延迟恢复对螺旋波的影响研究∗[J].物理学报,2014,(23):1-7,7.基金项目
国家自然科学基金(批准号:11165004,11365003)资助的课题.* Project supported by the National Natural Science Foundation of China (Grant Nos.11165004,11365003) （批准号:11165004,11365003）
