Open AccessFire patterns of coupled FitzHugh-Nagumo neurons exposed to external electric field
Author(s) -
Wang Bao-Yan,
Wenjie Xu,
Xing Zhen-Ci
Publication year - 2009
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.58.6590
Subject(s) - stimulus (psychology) , bifurcation , chaotic , physics , oscillation (cell signaling) , electric field , mechanics , control theory (sociology) , computer science , nonlinear system , quantum mechanics , chemistry , psychology , biochemistry , control (management) , artificial intelligence , psychotherapist
This paper investigates the dynamic behavior of the two coupled FitzHugh-Nagumo neurons connected by coupling. The system exhibits p∶q phase-locked i.e. a periodic oscillation defined as p action potentials generated by q cycle stimulations depending on the value of stimulus frequency. Whether phase-locking occurs or not relies on the fire patterns of the system. Furthermore, the stimulus frequency and coupling intensity can stir up rich bifurcation respectively, and the stimulus frequency affects the system fire patterns more obviously. The study has also found that chaotic behavior is the transition state to other fire patterns.