Spatial coherence resonance in neuronal media with discrete local dynamics

Abstract

We study effects of spatiotemporal additive noise on the spatial dynamics of excitable neuronal media that is locally modelled by a two-dimensional map. We focus on the ability of noise to enhance a particular spatial frequency of the media in a resonant manner. We show that there exists an optimal noise intensity for which the inherent spatial periodicity of the media is resonantly pronounced, thus marking the existence of spatial coherence resonance in the studied system. Additionally, results are discussed in view of their possible biological importance.

Keywords

fizika;kompleksni sistemi;dinamični sistemi;prostorska dinamika;hrup;kaos;kaotični sistemi;resonanca;matematični modeli;physics;complex systems;dynamical systems;noise;spatial dynamics;chaos;chaotic systems;chaos control;resonance;

Data

Language:	English
Year of publishing:	2007
Typology:	1.01 - Original Scientific Article
Organization:	UM FNM - Faculty of Natural Sciences and Mathematics
UDC:	530.16
COBISS:	14819848
ISSN:	0960-0779
Views:	1781
Downloads:	96
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary keywords:	fizika;kompleksni sistemi;dinamični sistemi;prostorska dinamika;hrup;kaos;kaotični sistemi;resonanca;matematični modeli;
URN:	URN:SI:UM:
Pages:	str. 64-69
Volume:	ǂVol. ǂ31
Issue:	ǂiss. ǂ1
Chronology:	2007
ID:	8724100