The role of random dendrites and inhibitory pathways in retinal neuron networks

Misako Takayasu, Hideki Takayasu, Amane Koizumi, Yutaka Shiraishi and Akimichi Kaneko

Physica A: Statistical Mechanics and its Applications, 2005, vol. 357, issue 3, 513-524

Abstract: It is shown theoretically that an apparent intellectual function of direction selectivity is naturally caused by neuronal threshold dynamics in the retinal neural network with non-uniform signal delays originating in the neuron's random dendrite geometry. By addition of information pathways via inhibitory cells, the selective function is enhanced by the effect of non-isotropic shielding and temporal sharpening of neural signals. A numerical simulation of retinal neuron network demonstrates the validity of this functional improvement by addition of the inhibitory pathways.

Date: 2005
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:357:y:2005:i:3:p:513-524

DOI: 10.1016/j.physa.2005.04.026

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