首页> 外文期刊>EPJ Nonlinear Biomedical Physics >Attractor and saddle node dynamics in heterogeneous neural fields
【24h】

Attractor and saddle node dynamics in heterogeneous neural fields

机译:异构神经场中的吸引子和鞍结动力学

获取原文
       

摘要

Background We present analytical and numerical studies on the linear stability of spatially non-constant stationary states in heterogeneous neural fields for specific synaptic interaction kernels. Methods The work shows the linear stabiliy analysis of stationary states and the implementation of a nonlinear heteroclinic orbit. Results We find that the stationary state obeys the Hammerstein equation and that the neural field dynamics may obey a saddle-node bifurcation. Moreover our work takes up this finding and shows how to construct heteroclinic orbits built on a sequence of saddle nodes on multiple hierarchical levels on the basis of a Lotka-Volterra population dynamics. Conclusions The work represents the basis for future implementation of meta-stable attractor dynamics observed experimentally in neural population activity, such as Local Field Potentials and EEG.
机译:背景我们提供了针对特定突触相互作用核的非均质神经场中空间非恒定平稳态线性稳定性的分析和数值研究。方法该工作显示了稳态的线性稳定性分析和非线性异斜轨道的实现。结果我们发现稳态服从Hammerstein方程,而神经场动力学则服从鞍节点分叉。此外,我们的工作吸收了这一发现,并展示了如何基于Lotka-Volterra种群动态在多个层次级别上构建基于一系列鞍形节点的异质轨道。结论该工作代表了未来在神经群体活动中通过实验观察到的亚稳态吸引子动力学的基础,例如局部场势和EEG。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号