Fractional Ornstein-Uhlenbeck process with stochastic forcing, and its applications

G Ascione, Y Mishura, E Pirozzi - Methodology and Computing in Applied …, 2021 - Springer
We consider a fractional Ornstein-Uhlenbeck process involving a stochastic forcing term in
the drift, as a solution of a linear stochastic differential equation driven by a fractional …

[HTML][HTML] Spatiotemporal patterns and collective dynamics of bi-layer coupled Izhikevich neural networks with multi-area channels

G Wang, Y Fu - Mathematical Biosciences and Engineering, 2023 - aimspress.com
The firing behavior and bifurcation of different types of Izhikevich neurons are analyzed
firstly through numerical simulation. Then, a bi-layer neural network driven by random …

Colored noise and a stochastic fractional model for correlated inputs and adaptation in neuronal firing

E Pirozzi - Biological cybernetics, 2018 - Springer
High variability in the neuronal response to stimulations and the adaptation phenomenon
cannot be explained by the standard stochastic leaky integrate-and-fire model. The main …

Closed-form solutions for the first-passage-time problem and neuronal modeling

A Buonocore, L Caputo, G D'Onofrio, E Pirozzi - Ricerche di Matematica, 2015 - Springer
Abstract The Gauss–Diffusion processes are here considered and some relations between
their infinitesimal moments and mean and covariance functions are remarked. The …

Fractionally integrated Gauss-Markov processes and applications

M Abundo, E Pirozzi - … in Nonlinear Science and Numerical Simulation, 2021 - Elsevier
We investigate the stochastic processes obtained as the fractional Riemann-Liouville
integral of order α∈(0, 1) of Gauss-Markov processes. The general expressions of the …

[PDF][PDF] On a stochastic neuronal model integrating correlated inputs

G Ascione, E Pirozzi - Math. Biosci. Eng, 2019 - aimspress.com
A modified LIF-type stochastic model is considered with a non-delta correlated stochastic
process in place of the traditional white noise. Two different mechanisms of reset are …

Integrated stationary Ornstein–Uhlenbeck process, and double integral processes

M Abundo, E Pirozzi - Physica A: Statistical Mechanics and its Applications, 2018 - Elsevier
We find a representation of the integral of the stationary Ornstein–Uhlenbeck (ISOU) process
in terms of Brownian motion B t; moreover, we show that, under certain conditions on the …

[PDF][PDF] Successive spike times predicted by a stochastic neuronal model with a variable input signal

G D'Onofrio, E Pirozzi - Mathematical Biosciences and Engineering, 2016 - iris.unito.it
Two different stochastic processes are used to model the evolution of the membrane voltage
of a neuron exposed to a time-varying input signal. The first process is an inhomogeneous …

Some Fractional Stochastic Models for Neuronal Activity with Different Time-Scales and Correlated Inputs

E Pirozzi - Fractal and Fractional, 2024 - mdpi.com
In order to describe neuronal dynamics on different time-scales, we propose a stochastic
model based on two coupled fractional stochastic differential equations, with different …

On fractional stochastic modeling of neuronal activity including memory effects

G Ascione, E Pirozzi - Computer Aided Systems Theory–EUROCAST 2017 …, 2018 - Springer
In order to model the memory and to describe the memory effects in the firing activity of a
single neuron subject to a time-dependent input current, a fractional stochastic Langevin …