Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/21293
Appears in Collections:Psychology Journal Articles
Peer Review Status: Refereed
Title: Contextual modulation as de-texturizer
Authors: Gheorghiu, Elena
Kingdom, Frederick A A
Petkov, Nicolai
Contact Email: elena.gheorghiu@stir.ac.uk
Keywords: Contour
Shape
Texture
Surround suppression
After-effect
Contextual modulation
Issue Date: Nov-2014
Publisher: Elsevier
Citation: Gheorghiu E, Kingdom FAA & Petkov N (2014) Contextual modulation as de-texturizer, Vision Research, 104, pp. 12-23.
Abstract: Contextual modulation refers to the effect of texture placed outside of a neuron's classical receptive field as well as the effect of surround texture on the perceptual properties of variegated regions within. In this minireview, we argue that one role of contextual modulation is to enhance the perception of contours at the expense of textures, in short to de-texturize the image. The evidence for this role comes mainly from three sources: psychophysical studies of shape after-effects, computational models of neurons that exhibit iso-orientation surround inhibition, and fMRI studies revealing specialized areas for contour as opposed to texture processing. The relationship between psychophysical studies that support the notion of contextual modulation as de-texturizer and those that investigate contour integration and crowding is discussed.
Type: Journal Article
URI: http://hdl.handle.net/1893/21293
DOI Link: http://dx.doi.org/10.1016/j.visres.2014.08.013
Rights: The publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.
Affiliation: Psychology
McGill University
University of Groningen

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