From Net Topology to Synchronization in HR Neuron Grids

In this paper, we investigate the role of topology onsynchronization, a fundamental feature of many technological andbiological fields. We study it in Hindmarsh-Rose neural networks,with electrical and chemical synapses, where neurons are placed ona bi-dimensional lattice, folded on a torus, and the...

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Main Authors: Stefano Cosenza, Paolo Crucitti, Luigi Fortuna, Mattia Frasca, Manuela La Rosa, Cecilia Stagni, Lisa Usai
Format: Article
Language:English
Published: AIMS Press 2004-10-01
Series:Mathematical Biosciences and Engineering
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Online Access:https://www.aimspress.com/article/doi/10.3934/mbe.2005.2.53
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Summary:In this paper, we investigate the role of topology onsynchronization, a fundamental feature of many technological andbiological fields. We study it in Hindmarsh-Rose neural networks,with electrical and chemical synapses, where neurons are placed ona bi-dimensional lattice, folded on a torus, and the synapses areset according to several topologies. In addition to the standardtopologies used in other studies, we introduce a new model thatgeneralizes the Barabási-Albert scale-free model, taking intoaccount the physical distance between nodes. Such a model, becauseof its plausibility both in the static characteristics and in thedynamical evolution, is a good representation for those realnetworks (such as a network of neurons) whose edges are notcostless. We investigate synchronization in several topologies;the results strongly depend on the adopted synapse model.
ISSN:1551-0018