Nonlinear Phenomena in Complex Systems, 2002, Vol.5, No.4, pp.356-363

NONLINEAR PHENOMENA IN COMPLEX SYSTEMS
An Interdisciplinary Journal

2002, Vol.5, No.4, pp.356-363

Heterogeneous Connectivity Patterns Alter the Timing Variability in Spatially Distributed Dynamic Systems.
Viktor K. Jirsa

Heterogeneous connectivity is omnipresent in spatially distributed biological systems. This property allows to introduce an information processing hierarchy in a spatially continuous system by means of organizing its spatiotemporal dynamics. The brain with its intricate and detailed connectivity is a beautiful example. In particular, it is understood that neuronal spike firings of action potentials contribute to the information processing in the brain. Here we ask the question, how the variability of these firing patterns is altered by the introduction of a heterogeneous fiber system. We study the special case of a two-point connection.
Key words: spatiotemporal dynamics, neural fields, heterogeneous connectivity, variability

Full text: Acrobat PDF (466KB) PostScript (4511KB) PostScript.gz (258KB)