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Distributed synchrony in a cell assembly of spiking neurons
We investigate the formation of a Hebbian cell assembly of spiking neurons, using a temporal synaptic learning curve that is based on recent experimental findings. It includes potentiation for short time delays between pre- and post-synaptic neuronal spiking, and depression for spiking events occurr...
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Published in: | Neural networks 2001-07, Vol.14 (6), p.815-824 |
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container_title | Neural networks |
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creator | Levy, Nir Horn, David Meilijson, Isaac Ruppin, Eytan |
description | We investigate the formation of a Hebbian cell assembly of spiking neurons, using a temporal synaptic learning curve that is based on recent experimental findings. It includes potentiation for short time delays between pre- and post-synaptic neuronal spiking, and depression for spiking events occurring in the reverse order. The coupling between the dynamics of synaptic learning and that of neuronal activation leads to interesting results. One possible mode of activity is distributed synchrony, implying spontaneous division of the Hebbian cell assembly into groups, or subassemblies, of cells that fire in a cyclic manner. The behavior of distributed synchrony is investigated both by simulations and by analytic calculations of the resulting synaptic distributions. |
doi_str_mv | 10.1016/S0893-6080(01)00044-2 |
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subjects | Action Potentials - physiology Animals Cortical Synchronization Humans Learning - physiology Models, Neurological Nerve Net - physiology Neuronal Plasticity - physiology Neurons - physiology Nonlinear Dynamics Synaptic Transmission - physiology |
title | Distributed synchrony in a cell assembly of spiking neurons |
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