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Neural Computation, Vol 7, 905-914, Copyright © 1995 by The MIT Press

ARTICLES

Spontaneous excitations in the visual cortex: stripes, spirals, rings, and collective bursts

C Fohlmeister, W Gerstner, R Ritz and JL van Hemmen
Physik-Department der TU Munchen, Germany.

As a simple model of the cortical sheet, we study a locally connected net of spiking neurons. Refractoriness, noise, axonal delays, and the time course of excitatory and inhibitory postsynaptic potentials are taken into account explicitly. In addition to a low-activity state and depending on the synaptic efficacy, four different scenarios evolve spontaneously, viz., stripes, spirals, rings, and collective bursts. Our results can be related to experimental observations of drug-induced epilepsy and hallucinations.


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C. R. Laing and C. C. Chow
Stationary Bumps in Networks of Spiking Neurons
Neural Comput., July 1, 2001; 13(7): 1473 - 1494.
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