A neurodynamical model of brightness induction in V1

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• dc.contributor.author Penacchio, Olivierca
• dc.contributor.author Otazu, Xavierca
• dc.contributor.author Dempere-Marco, Lauraca
• dc.date.accessioned 2016-02-17T17:58:50Z
• dc.date.available 2016-02-17T17:58:50Z
• dc.date.issued 2013
• dc.description.abstract Brightness induction is the modulation of the perceived intensity of an area by the luminance of surrounding areas. Recent/nneurophysiological evidence suggests that brightness information might be explicitly represented in V1, in contrast to the/nmore common assumption that the striate cortex is an area mostly responsive to sensory information. Here we investigate/npossible neural mechanisms that offer a plausible explanation for such phenomenon. To this end, a neurodynamical model/nwhich is based on neurophysiological evidence and focuses on the part of V1 responsible for contextual influences is/npresented. The proposed computational model successfully accounts for well known psychophysical effects for static/ncontexts and also for brightness induction in dynamic contexts defined by modulating the luminance of surrounding areas./nThis work suggests that intra-cortical interactions in V1 could, at least partially, explain brightness induction effects and/nreveals how a common general architecture may account for several different fundamental processes, such as visual/nsaliency and brightness induction, which emerge early in the visual processing pathway.ca
• dc.description.sponsorship This research has been partially supported by the Spanish Ministry of Science and Innovation through the research projects TIN2010-21771-C02-01 and TIN2010-21771-C02-02. OP is supported by the Spanish Ministry of Science and Innovation through the research project Consolider Ingenio (CSD 2007-00018).
• dc.format.mimetype application/pdfca
• dc.identifier.citation Penacchio O, Otazu X, Dempere-Marco L. A neurodynamical model of brightness induction in V1. PLoS ONE. 2013;8(5):1-14. DOI: 10.1371/journal.pone.0064086
• dc.identifier.doi http://dx.doi.org/10.1371/journal.pone.0064086
• dc.identifier.issn 1932-6203
• dc.identifier.uri http://hdl.handle.net/10230/25865
• dc.language.iso engca
• dc.publisher Public Library of Scienceca
• dc.relation.ispartof PLoS ONE. 2013;8(5):1-14
• dc.relation.projectID info:eu-repo/grantAgreement/ES/3PN/TIN2010-21771-C02-01
• dc.relation.projectID info:eu-repo/grantAgreement/ES/3PN/TIN2010-21771-C02-02
• dc.relation.projectID info:eu-repo/grantAgreement/ES/2PN/CSD2007-00018
• dc.rights © 2013 Penacchio et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits/nunrestricted use, distribution, and reproduction in any medium, provided the original author and source are creditedca
• dc.rights.accessRights info:eu-repo/semantics/openAccessca
• dc.rights.uri http://creativecommons.org/licenses/by/4.0/
• dc.title A neurodynamical model of brightness induction in V1ca
• dc.type info:eu-repo/semantics/articleca
• dc.type.version info:eu-repo/semantics/publishedVersionca