Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/63565
Type: Artigo de periódico
Title: DYNAMIC BEHAVIOR OF THE FIRINGS IN A COUPLED NEURONAL SYSTEM
Author: WEI, W
PEREZ, G
CERDEIRA, HA
Abstract: The time-interval sequences and the spatiotemporal patterns of the firings of a coupled neuronal network are investigated in this paper. For a single neuron stimulated by an external stimulus I, the time-interval sequences show a low-frequency firing of bursts of spikes and a reversed period-doubling cascade to a high-frequency repetitive firing state as the stimulus I is increased. For two neurons coupled to each other through the firing of the spikes, the complexity of the time-interval sequences becomes simple as the coupling strength increases. A network with a large number of neurons shows a complex spatiotemporal pattern structure. As the coupling strength increases, the number of phase-locked neurons increases and the time-interval diagram shows temporal chaos and a bifurcation in the space. The dynamical behavior is also verified by the behavior of the Lyapunov exponent.
Country: EUA
Editor: American Physical Soc
Rights: aberto
Date Issue: 1993
Appears in Collections:Unicamp - Artigos e Outros Documentos

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