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Characterizing contrast adaptation in a population of cat primary visual cortical neurons using Fisher information

Durant, Szonya; Clifford, Colin W. G.; Crowder, Nathan A.; Price, Nicholas S. C.; Ibbotson, Michael R.


When cat V1/V2 cells are adapted to contrast at their optimal orientation, a reduction in gain and/or a shift in the contrast response function is found. We investigated how these factors combine at the population level to affect the accuracy for detecting variations in contrast. Using the contrast response function parameters from a physiologically measured population, we model the population accuracy (using Fisher information) for contrast discrimination. Adaptation at 16%, 32%, and 100%...[Show more]

CollectionsANU Research Publications
Date published: 2007-06
Type: Journal article
Source: Journal of the Optical Society of America A
DOI: 10.1364/JOSAA.24.001529


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