Active spike transmission in the neuron model with a winding threshold manifold

• Published in: Neurocomputing (Amsterdam) 2012-04, Vol.83, p.205-211
• Main Authors: Kazantsev, V.B., Tchakoutio Nguetcho, A.S., Jacquir, S., Binczak, S., Bilbault, J.M.
• Format: Article
• Language: English
• Subjects: Active response; Chaotic Dynamics; Cognitive science; Dynamical Systems; Electronics; Engineering Sciences; Excitability; Mathematics; Neuroscience; Nonlinear dynamics; Nonlinear Sciences; Spike encoding; Spike transmission; Threshold manifold
• ISSN: 0925-2312; 1872-8286
• DOI: 10.1016/j.neucom.2011.12.014

We analyze spiking responses of excitable neuron model with a winding threshold manifold on a pulse stimulation. The model is stimulated with external pulse stimuli and can generate nonlinear integrate-and-fire and resonant responses typical for excitable neuronal cells (all-or-none). In addition we show that for certain parameter range there is a possibility to trigger a spiking sequence with a finite number of spikes (a spiking message) in the response on a short stimulus pulse. So active transformation of N incoming pulses to M (with M>N) outgoing spikes is possible. At the level of single neuron computations such property can provide an active “spike source” compensating “spike dissipation” due to the integrate-and-fire N to 1 response. We delineate the dynamical mechanism for the N to M transformation based on the winding threshold manifold in the neighborhood of big saddle loop bifurcation. Based on the theoretical predictions, a nonlinear electronic circuit is designed implementing the active transmission in physical conditions.