Dynamics of delay-coupled excitable neural systems

Details Dynamics of delay-coupled excitable neural systems Dynamics of delay-coupled excitable neural systems

2008-03-16

arxiv.org/abs/0803.2352v1

Nonlinear Sciences

Pattern Formation and Solitons

6 pages, 7 figures

Scientific paper

We study the nonlinear dynamics of two delay-coupled neural systems each modelled by excitable dynamics of FitzHugh-Nagumo type and demonstrate that bistability between the stable fixed point and limit cycle oscillations occurs for sufficiently large delay times and coupling strength. As the mechanism for these delay-induced oscillations we identify a saddle-node bifurcation of limit cycles.

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