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BLOWOUT BIFURCATION AND ON–OFF INTERMITTENCY IN PULSE NEURAL NETWORKS WITH MULTIPLEC MODULES

TAKASHI KANAMARU

Department of Basic Engineering in Global Environment, Faculty of Engineering, Kogakuin University, 2665-1 Nakano, Hachioji, Tokyo 192-0015, Japan

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https://doi.org/10.1142/S021812740601680XCited by:18 (Source: Crossref)

Abstract

To study the mechanism by which high-dimensional chaos emerges in neural systems, the synchronization of chaotic firings in class 1 pulse neural networks composed of excitatory and inhibitory ensembles was analyzed. In the system with two modules (i.e. two pulse neural networks), blowout bifurcation and on–off intermittency were observed when the inter-module connection strengths were reduced from large values. In the system with three modules, rearrangement of synchronized clusters and chaotic itinerancy were observed. Such dynamics may be one of the mechanisms through which high-dimensional chaos is generated in neural systems.

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