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Spatial coherence resonance in excitable biochemical media induced by internal noiseMarko Gosak,
Marko Marhl,
Matjaž Perc, 2007, izvirni znanstveni članek
Opis: We show that in a spatially extended excitable medium, presently modelled with diffusively coupled FitzHugh-Nagumo neurons, internal stochasticity is able to extract a characteristic spatial frequency of waves on the spatial grid. Internal noise is introduced via a stochastic simulation method and is the only agent acting on the system. Remarkably, the spatial periodicity is best pronounced at an intermediate level of internal stochasticity. Thus, the reported phenomenon is an observation of internal noise spatial coherence resonance in excitable biochemical media.
Ključne besede: noise, spatiotemporal noise, intensity, spatial resonance, spatial coherence resonance, excitable media, excitable biochemical media, neuronal dynamics, internal noise
Objavljeno v DKUM: 07.06.2012; Ogledov: 1735; Prenosov: 84
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