Dynamics of Synaptic Plasticity: A Comparison between Models and Experimental Results in Visual Cortex
Receptive fields in the visual cortex can be altered by changing the visual environment, as has been shown many times in deprivation experiments. In this paper we simulate this set of experiments using two different models of cortical plasticity, BCM and PCA. The visual environment used is composed of natural images for open eye and of noise for closed eyes. We measure the response of the neurons to oriented stimuli, and use the time course information of the neuronal response to provide a preliminary quantitative comparison between the cortical models and experiment.
KeywordsVisual Cortex Synaptic Plasticity Receptive Field Visual Environment Striate Cortex
Unable to display preview. Download preview PDF.
- [l]E. L. Bienenstock, L. N. Cooper, and R W. Munro. Theory for the development of neuron selectivity: orientation specificity and binocular interaction in visual cortex. Journal Neuroscience, 2: 32–48, 1982.Google Scholar
- C. Blakemore and R. R. van Sluyters. Reversal of the physiological effects of monocular deprivation in kittens: further evidence for sensitive period. J. Phvsiol. Land., 248: 663–716, 1974.Google Scholar
- H. Shouval and Y. Liu. How does retinal preprocessing Affect the Receptive field of a stabilized hebbian neuron. In J. M. Bower, editor, The Neurobiology of Computation: The Proceedings of the Third Annual Computation and Neural Systems confrence, pages 129–134. Kluwer, 1994.Google Scholar