Oscillations, complex spatiotemporal behavior, and information transport in networks of excitatory and inhibitory neurons

Journal Article · Mon Aug 01 04:00:00 EDT 1994 · Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics; (United States)

DOI:https://doi.org/10.1103/PhysRevE.50.1594· OSTI ID:7253330

Destexhe, A ^[1]

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1. Universite Libre de Bruxelles, Code Postal 231, Campus Plaine, Boulevard du Triomphe, B-1050 Bruxelles (Belgium)

Various types of spatiotemporal behavior are described for two-dimensional networks of excitatory and inhibitory neurons with time delayed interactions. It is described how the network behaves as several structural parameters are varied, such as the number of neurons, the connectivity, and the values of synaptic weights. A transition from spatially uniform oscillations to spatiotemporal chaos via intermittentlike behavior is observed. The properties of spatiotemporally chaotic solutions are investigated by evaluating the largest positive Lyapunov exponent and the loss of correlation with distance. Finally, properties of information transport are evaluated during uniform oscillations and spatiotemporal chaos. It is shown that the diffusion coefficient increases significantly in the spatiotemporal phase similar to the increase of transport coefficients at the onset of fluid turbulence. It is proposed that such a property should be seen in other media, such as chemical turbulence or networks of oscillators. The possibility of measuring information transport from appropriate experiments is also discussed.

• OSTI ID: 7253330
• Journal Information: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics; (United States), Journal Name: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics; (United States) Vol. 50:2; ISSN PLEEE8; ISSN 1063-651X
• Country of Publication: United States
• Language: English

Related Subjects

661300* -- Other Aspects of Physical Science-- (1992-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANIMAL CELLS
BODY
BRAIN
CENTRAL NERVOUS SYSTEM
CEREBRAL CORTEX
CEREBRUM
DIFFUSION
INFORMATION
NERVE CELLS
NERVOUS SYSTEM
NEURAL NETWORKS
ORGANS
OSCILLATIONS
SOMATIC CELLS
TRANSPORT THEORY
TURBULENCE