Volume 43, Number 6, September II 1998
|Page(s)||719 - 724|
|Section||Cross-disciplinary physics and related areas of science and technology|
|Published online||01 September 2002|
Clusters of synchronization and bistability in lattices of chaotic neurons
Department of Computer Engineering, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
2 Institute for Nonlinear Science, University of California, San Diego, La Jolla, CA 92093-0402, USA
3 Howard Hughes Medical Institute, The Salk Institute, Computational Neurobiology Laboratory, La Jolla, CA 92037, USA
Accepted: 17 July 1998
We investigated different regimes of synchronization in large lattices of chaotic spiking-bursting neurons. The lattices exhibit the following features: developed spatio-temporal disorder with no synchronization; spatial clusters of bursting synchronization; homogeneous bursting synchronization; and complete chaotic synchronization. We observed a bistable synchronization phenomenon in a wide region of the control parameter space. The bistability exists for homogeneous bursting synchronization with long-range correlation and spatial clusters of partial synchronization. The bistable regime appears in lattices with a size larger than the space-scale of these clusters.
PACS: 87.10.+e – General, theoretical, and mathematical biophysics (including logic of biosystems, quantum biology, and relevant aspects of thermodynamics, information theory, cybernetics, and bionics) / 87.22.As – General theory and phenomenology
© EDP Sciences, 1998
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