Six decades of the FitzHugh–Nagumo model: A guide through its spatio-temporal dynamics and influence across disciplines

D Cebrián-Lacasa, P Parra-Rivas, D Ruiz-Reynés… - Physics Reports, 2024 - Elsevier
Abstract The FitzHugh–Nagumo equation, originally conceived in neuroscience during the
1960s, became a key model providing a simplified view of excitable neuron cell behavior. Its …

Coherence resonance in neural networks: Theory and experiments

AN Pisarchik, AE Hramov - Physics Reports, 2023 - Elsevier
The paper is devoted to the review of the coherence resonance phenomenon in excitable
neural networks. In particular, we explain how coherence can be measured and how noise …

Spatiotemporal order out of noise

F Sagués, JM Sancho, J García-Ojalvo - Reviews of Modern Physics, 2007 - APS
Natural systems are undeniably subject to random fluctuations, arising from either
environmental variability or thermal effects. The consideration of those fluctuations supposes …

Lévy noise-induced coherence resonance in neural maps

E Rybalova, A Ryabov, S Muni, G Strelkova - Chaos, Solitons & Fractals, 2024 - Elsevier
In this contribution, we investigate coherence resonance in map-based neural models in the
presence of Lévy noise. The impact of different parameters of Lévy noise on the oscillatory …

Noise-induced stabilization of the FitzHugh–Nagumo neuron dynamics: Multistability and transient chaos

C Manchein, L Santana, RM da Silva… - … Journal of Nonlinear …, 2022 - pubs.aip.org
The nonlinear dynamics of a FitzHugh–Nagumo (FHN) neuron driven by an oscillating
current and perturbed by a Gaussian noise signal with different intensities D is investigated …

Coherent resonance in the distributed cortical network during sensory information processing

AN Pisarchik, VA Maksimenko, AV Andreev… - Scientific Reports, 2019 - nature.com
Neuronal brain network is a distributed computing system, whose architecture is dynamically
adjusted to provide optimal performance of sensory processing. A small amount of visual …

Extreme events in excitable systems and mechanisms of their generation

G Ansmann, R Karnatak, K Lehnertz, U Feudel - Physical Review E—Statistical …, 2013 - APS
We study deterministic systems, composed of excitable units of FitzHugh–Nagumo type, that
are capable of self-generating and self-terminating strong deviations from their regular …

Coherence resonance in stimulated neuronal network

AV Andreev, VV Makarov, AE Runnova… - Chaos, Solitons & …, 2018 - Elsevier
We consider a neuronal network model where an external stimulus excites some neurons,
which in turn activate other neurons in the network via synapse. We find that the regularity in …

Relaxation and self-sustained oscillations in the time elapsed neuron network model

K Pakdaman, B Perthame, D Salort - SIAM Journal on Applied Mathematics, 2013 - SIAM
The time elapsed model describes the firing activity of a homogenous assembly of neurons
thanks to the distribution of times elapsed since the last discharge. It gives a mathematical …

Finite size effects in the dynamics of opinion formation

R Toral, CJ Tessone - arxiv preprint physics/0607252, 2006 - arxiv.org
For some models of relevance in the social sciences we review some examples in which
system size plays an important role in the final outcome of the dynamics. We discuss the …