Synchronization phenomena in networks of oscillatory and excitable Luo-Rudy cells

G. V. Osipov, O. I. Kanakov, C. K. Chan, J. Kurths, S. K. Dana, L. S. Averyanova, V. S. Petrov

研究成果: 書貢獻/報告類型篇章同行評審

1 引文 斯高帕斯(Scopus)

摘要

We study collective phenomena in nonhomogeneous autonomous and forced cardiac cell culture models, including one- and two-dimensional lattices of oscillatory cells and mixtures of oscillatory and excitable cells. Individual cell dynamics is described by a modified Luo-Rudy model with depolarizing current. We focus on the transition from incoherent behavior to global synchronization via cluster synchronization regimes as coupling strength is increased. These regimes are characterized qualitatively by space-time plots and quantitatively by profiles of local frequencies and distributions of cluster sizes in dependence upon coupling strength. We describe spatio-temporal patterns arising during this transition, including pacemakers, spiral waves and complicated irregular activity. We investigate the influence of external force on the processes of control of cardiac activity, e.g. on the suppression of spiral wave chaos in the network.

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主出版物標題Complex Dynamics in Physiological Systems
主出版物子標題From Heart to Brain
編輯Syamal Dana, Prodyot Roy, Jurgen Kurths
頁面107-126
頁數20
DOIs
出版狀態已出版 - 2009

出版系列

名字Understanding Complex Systems
2009
ISSN(列印)1860-0832
ISSN(電子)1860-0840

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