Optimal response function in networks of excitatory elements

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Zbis

aw Tabor
Department of Biophysics, Jagiellonian University Medical College, ul. Grzegorzecka 16a, 31-531 Cracow, Poland

Received 30 March 2006; revised 31 May 2006; published 2 August 2006

Inthis paper the problem of signal propagation in networks ofexcitatory elements is studied. It is found that the geometryof signal transmission paths depends crucially on how an excitatoryelement responds to a stimulus. Two types of responses aredefined: fast and slow. In the slow response case thesignal transmission paths are in the same universality class asoptimal paths in the limit of strong disorder. The signaltransmission paths formed in the fast response case constitute possiblya new universality class.

URL:	http://link.aps.org/doi/10.1103/PhysRevE.74.021102
DOI:	10.1103/PhysRevE.74.021102
PACS:	05.40.-a; 64.60.Ak; 89.75.Hc 05.40.-a Fluctuation phenomena, random processes, noise, and Brownian motion 64.60.Ak Renormalization-group, fractal, and percolation studies of phase transitions 89.75.Hc Networks and genealogical trees YEAR: 2006
KEYWORDS:	physiological models, neurophysiology, statistical analysis

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