Spiking behavior in a noise-driven system combining oscillatory and excitatory properties

Authors
Makarov, VA Nekorkin, VI Velarde, MG
Citation
Va. Makarov et al., Spiking behavior in a noise-driven system combining oscillatory and excitatory properties, PHYS REV L, 86(15), 2001, pp. 3431-3434
Citations number
26
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
86
Issue
15
Year of publication
2001
Pages
3431 - 3434
Database
ISI
SICI code
0031-9007(20010409)86:15<3431:SBIANS>2.0.ZU;2-R
Abstract
We show that firing activity (spiking) can be regularized by noise in a Fit zHugh-Nagumo (FHN) neuron model when operating slightly beyond the supercri tical Hopf bifurcation (in the "canard" region). We also provide the condit ions for imperfect phase Locking between interspike intervals and low ampli tude quasiharmonic oscillations. For the imperfect phase locking no need ex ists of an external signal as it follows from the FHN intrinsic dynamics.