Chimera states in networks of type-I Morris-Lecar neurons
Chimera states in networks of type-I Morris-Lecar neurons
复制标题
DOI：
10.1103/physreve.98.062217
复制
发表时间：
2018-12-21
影响因子：
2.4
通讯作者：
Uzuntarla, Muhammet
中科院分区：
文献类型：
--
作者：
Calim, Ali;Hoevel, Philipp;Uzuntarla, Muhammet
嵌合体是一种复杂的时空模式，它是相干和非相干耦合动力系统共存的结果。在这里，我们调查嵌合体状态的出现在非本地网络的I型莫里斯-Lecar神经元通过化学突触耦合。这构成了一个更现实的神经元建模框架比以前的研究嵌合状态，因为莫里斯-Lecar模型提供了生物药理学更相关的控制参数来描述在实际的神经系统的活动。我们系统地探讨了动态行为的转换，发现不同类型的同步出现取决于兴奋性水平和非局部网络功能。此外，我们映射的非相干态，行波，嵌合体，相干态之间的过渡，和整体振幅死亡的参数空间的兴趣。这项工作有助于更好地了解生物条件引起的嵌合体状态的出现在神经介质。
Chimeras are complex spatiotemporal patterns that emerge as coexistence of both coherent and incoherent groups of coupled dynamical systems. Here, we investigate the emergence of chimera states in nonlocal networks of type-I Morris-Lecar neurons coupled via chemical synapses. This constitutes a more realistic neuronal modeling framework than previous studies of chimera states, since the Morris-Lecar model provides biophysically more relevant control parameters to describe the activity in actual neural systems. We explore systematically the transitions of dynamic behavior and find that different types of synchrony appear depending on the excitability level and nonlocal network features. Furthermore, we map the transitions between incoherent states, traveling waves, chimeras, coherent states, and global amplitude death in the parameter space of interest. This work contributes to a better understanding of biological conditions giving rise to the emergence of chimera states in neural medium.