Matjaž Perc (Author), Marko Gosak (Author), Marko Marhl (Author)

Abstract

We show that internal stochasticity, originating from finite cell sizes and related small numbers of reactant ions participating in the dynamics, is able to extract a characteristic spatial frequency of calcium waves in the medium of diffusively coupled cells. Internal noise is thereby the only agent acting on the system. As the spatial periodicity is best pronounced at an intermediate level of stochasticity the reported phenomenon is thus a novel observation of internal noise spatial coherence resonance in biochemical tissue-like media. In addition, results shed light on the stochastic versus deterministic nature of dynamics at the cellular and tissue level.

Keywords

biofizika;hrup;intenziteta hrupa;prostorska resonanca;stohastični procest;noise;spatiotemporal noise;intensity;spatial resonance;chemical media;stochastic systems;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UM FNM - Faculty of Natural Sciences and Mathematics
UDC: 577
COBISS: 15257352 Link will open in a new window
ISSN: 0009-2614
Views: 1337
Downloads: 70
Average score: 0 (0 votes)
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Other data

Secondary language: English
Secondary keywords: biofizika;hrup;intenziteta hrupa;prostorska resonanca;stohastični procest;
URN: URN:SI:UM:
Pages: str. 143-147
Volume: ǂVol. ǂ437
Issue: ǂiss. ǂ1/3
Chronology: 2007
ID: 8724107