Accession Number : ADA316967

Title :   Time Dependence of Visual Deprivation: A Comparison between Models of Plasticity and Experimental Results.

Descriptive Note : Technical rept.,

Corporate Author : BROWN UNIV PROVIDENCE RI INST FOR BRAIN AND NEURAL SYSTEMS

Personal Author(s) : Blais, Brian ; Shouval, Harel ; Cooper, Leon N.

PDF Url : ADA316967

Report Date : 07 OCT 1996

Pagination or Media Count : 16

Abstract : Receptive fields in the visual cortex can be altered by chaning 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.

Descriptors :   *VISION, *EYE, *STIMULI, *VISUAL CORTEX, ENVIRONMENTS, TIME DEPENDENCE, MODELS, COMPARISON, RESPONSE, IMAGES, PLASTIC PROPERTIES, NERVE CELLS, DEPRIVATION.

Subject Categories : Anatomy and Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE