RT Journal Article T1 Spiking behavior in a noise-driven system combining oscillatory and excitatory properties A1 Makarov Slizneva, Valeriy A1 Nekorkin, Vladimir I. A1 Velarde, Manuel G. AB We show that firing activity (spiking) can be regularized by noise in a FitzHugh-Nagumo (FHN) neuron model when operating slightly beyond the supercritical Hopf bifurcation (in the "canard" region). We also provide the conditions for imperfect phase Locking between interspike intervals and low amplitude quasiharmonic oscillations. For the imperfect phase locking no need exists of an external signal as it follows from the FHN intrinsic dynamics. PB American Physical Society SN 0031-9007 YR 2001 FD 2001-04-09 LK https://hdl.handle.net/20.500.14352/57693 UL https://hdl.handle.net/20.500.14352/57693 LA eng NO Spanish Ministry of Science and Technology NO Programa Catedra of the BBV Foundation (Spain) NO Russian Foundation DS Docta Complutense RD 8 abr 2025