Neural Mechanisms of Contrast Dependent Receptive Field Size in V1
Abstract
Based on a large scale spiking neuron model of the input layers 4C and of macaque, we identify neural mechanisms for the observed contrast dependent receptive field size of V1 cells. We observe a rich variety of mechanisms for the phenomenon and analyze them based on the relative gain of excitatory and inhibitory synaptic inputs. We observe an average growth in the spatial extent of excitation and inhibition for low contrast, as predicted from phenomenological models. However, contrary to phenomenological models, our simulation results suggest this is neither sufficient nor necessary to explain the phenomenon.
Cite
Text
Wielaard and Sajda. "Neural Mechanisms of Contrast Dependent Receptive Field Size in V1." Neural Information Processing Systems, 2005.Markdown
[Wielaard and Sajda. "Neural Mechanisms of Contrast Dependent Receptive Field Size in V1." Neural Information Processing Systems, 2005.](https://mlanthology.org/neurips/2005/wielaard2005neurips-neural/)BibTeX
@inproceedings{wielaard2005neurips-neural,
title = {{Neural Mechanisms of Contrast Dependent Receptive Field Size in V1}},
author = {Wielaard, Jim and Sajda, Paul},
booktitle = {Neural Information Processing Systems},
year = {2005},
pages = {1505-1512},
url = {https://mlanthology.org/neurips/2005/wielaard2005neurips-neural/}
}