TY - JOUR

T1 - Noise-induced synchronization in a lattice Hodgkin-Huxley neural network

AU - Pang, James Christopher S.

AU - Monterola, Christopher P.

AU - Bantang, Johnrob Y.

PY - 2014/1/1

Y1 - 2014/1/1

N2 - We examine how the synchronization of the series of action potentials (APs) of realistic neurons interconnected in a lattice is influenced by variations of both the direction and magnitude of neuron-neuron connectivity in a noisy environment. We first demonstrate the existence of an optimal noise level that brings about the highest average number of APs per unit time, for a single Hodgkin-Huxley neuron. We then show that synchronization, as a collective response of interconnected neurons forming an N×N lattice, is optimal at different noise strengths σc=σc(p), depending on the degree of random-link malfunction parameterized by flipping direction probability p. Thus, even without the scale-free structure of neuronal networks, proper combinations of both randomness in reconnection (flipping) and noisy environment can be beneficial to the collective functioning of neurons.

AB - We examine how the synchronization of the series of action potentials (APs) of realistic neurons interconnected in a lattice is influenced by variations of both the direction and magnitude of neuron-neuron connectivity in a noisy environment. We first demonstrate the existence of an optimal noise level that brings about the highest average number of APs per unit time, for a single Hodgkin-Huxley neuron. We then show that synchronization, as a collective response of interconnected neurons forming an N×N lattice, is optimal at different noise strengths σc=σc(p), depending on the degree of random-link malfunction parameterized by flipping direction probability p. Thus, even without the scale-free structure of neuronal networks, proper combinations of both randomness in reconnection (flipping) and noisy environment can be beneficial to the collective functioning of neurons.

KW - Hodgkin-Huxley neurons

KW - Network

KW - Noise

KW - Synchronization

UR - http://www.scopus.com/inward/record.url?scp=84886590664&partnerID=8YFLogxK

U2 - 10.1016/j.physa.2013.08.069

DO - 10.1016/j.physa.2013.08.069

M3 - Article

AN - SCOPUS:84886590664

SN - 0378-4371

VL - 393

SP - 638

EP - 645

JO - Physica A: Statistical Mechanics and its Applications

JF - Physica A: Statistical Mechanics and its Applications

ER -