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Binocular energy responses to natural images

Hibbard, PB (2008) 'Binocular energy responses to natural images.' Vision Research, 48 (12). 1427 - 1439. ISSN 0042-6989

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The binocular energy model provides a good description of the first stages of cortical binocular processing. Three important determinants of the responses of neurons under this model are the disparity of a stimulus, its spatial variation in disparity and its second-order luminance statistics. The influence of the latter two factors on the disparity tuning of the energy model were investigated. While each can have a significant effect on the energy response, neither presents a significant challenge when one considers the range of variation expected in natural images. The response of the energy model to natural binocular images was also investigated. The strongest responses were found for model neurons tuned to small disparities. This trend was more evident for vertical than for horizontal disparity, and flattened rapidly as image eccentricity increased. These results are predicted on the basis of simple geometrical considerations, and are reflected in both physiological and psychophysical measures of the disparity tuning of the visual system. © 2008 Elsevier Ltd. All rights reserved.

Item Type: Article
Subjects: B Philosophy. Psychology. Religion > BF Psychology
Divisions: Faculty of Science and Health > Psychology, Department of
Depositing User: Clare Chatfield
Date Deposited: 18 Dec 2014 16:33
Last Modified: 17 Aug 2017 17:48

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