Complex Dynamics of FitzHugh-Nagumo Type Neurons Coupled with Gap Junction under External Voltage Stimulation

Journal of Engineering Science and Technology Review

卷:6

A. T. Makri¹  I. M. Kyprianidis¹ 

[1] Departmentt. of Physics, Aristotle University of Thessaloniki, GR - 54124, GREECE;

关键词: Nonlinear oscillators;    FitzHugh-Nagumo;    neuronal cells;    gap junction;    action potential;    chaos;    bidirectional coupling;   

DOI  :  

来源: DOAJ

【 摘 要 】

In the present paper, we have studied the complex dynamics of a system of two nonlinear neuronal cells, coupled by agap junction, which is modelled as a linear variable resistor. The two coupled cells are oscillators of the FitzHughNagumotype. The first cell, the “ImK-cell” is a voltage driven cell, while the second, the “RaLa-cell” is a current drivencell. We have examined the dynamics of the coupled system in the case of bidirectional coupling. An independentvoltage source gives the external stimulation. We have examined three different cases (AC, DC, AC plus DC) of theexternal signal. In each case we have different dynamics. Action potentials, chaotic and periodic oscillations areobserved.

【 授权许可】

Unknown