Matjaž Perc (Avtor)

Povzetek

We study effects of different network topologies on the noise-induced pattern formation in a two-dimensional model of excitable media with FitzHugh-Nagumo local dynamics. In particular, we show that the introduction of long-range couplings induces decoherence of otherwise coherent noise-induced spatial patterns that can be observed by regular connectivity of spatial units. Importantly, already a small fraction of long-range couplings is sufficient to destroy coherent pattern formation. We argue that the small-world network topology destroys spatial order due to the lack of a precise internal spatial scale, which by regular connectivity is given by the coupling constant and the noise robust excursion time that is characteristic for the local dynamics. Additionally, the importance of spatially versus temporally ordered neural network functioning is discussed.

Ključne besede

dinamični sistemi;ekscitabilni sistemi;hrup;intenziteta hrupa;prostorska resonanca;inherentna prostorska resonanca;prostorska dekoherenca;ne zaključna dela;dynamic systems;noise;spatiotemporal noise;intensity;spatial resonance;inherent spatial resonance;spatial decoherence;excitable media;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UM PEF - Pedagoška fakulteta
UDK: 534.83:531.3
COBISS: 14438664 Povezava se bo odprla v novem oknu
ISSN: 1367-2630
Št. ogledov: 1381
Št. prenosov: 377
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: dinamični sistemi;ekscitabilni sistemi;hrup;intenziteta hrupa;prostorska resonanca;inherentna prostorska resonanca;prostorska dekoherenca;
URN: URN:SI:UM:
Vrsta dela (COBISS): Članek v reviji
Strani: str. 1-9
Letnik: ǂVol. ǂ7
Zvezek: 252
Čas izdaje: 2005
DOI: 10.1088/1367-2630/7/1/252
ID: 8724262