Saliency on a natural scene background: Effects of color and luminance contrast add linearly
DC Element | Wert | Sprache |
---|---|---|
dc.contributor.author | Engmann, Sonja | |
dc.contributor.author | `t Hart, Bernard M. | |
dc.contributor.author | Sieren, Thomas | |
dc.contributor.author | Onat, Selim | |
dc.contributor.author | Koenig, Peter | |
dc.contributor.author | Einhaeuser, Wolfgang | |
dc.date.accessioned | 2021-12-23T16:14:18Z | - |
dc.date.available | 2021-12-23T16:14:18Z | - |
dc.date.issued | 2009 | |
dc.identifier.issn | 19433921 | |
dc.identifier.uri | https://osnascholar.ub.uni-osnabrueck.de/handle/unios/11005 | - |
dc.description.abstract | In natural vision, shifts in spatial attention are associated with shifts of gaze. Computational models of such overt attention typically use the concept of a saliency map: Normalized maps of center-surround differences are computed for individual stimulus features and added linearly to obtain the saliency map. Although the predictions of such models correlate with fixated locations better than chance, their mechanistic assumptions are less well investigated. Here, we tested one key assumption: Do the effects of different features add linearly or according to a max-type of interaction? We measured the eye position of observers viewing natural stimuli whose luminance contrast and/or color contrast (saturation) increased gradually toward one side. We found that these feature gradients biased fixations toward regions of high contrasts. When two contrast gradients (color and luminance) were superimposed, linear summation of their individual effects predicted their combined effect. This demonstrated that the interaction of color and luminance contrast with respect to human overt attention is-irrespective of the precise model-consistent with the assumption of linearity, but not with a max-type interaction of these features. | |
dc.description.sponsorship | Deutsche ForschungsgemeinschaftGerman Research Foundation (DFG); German Academic Exchange ServiceDeutscher Akademischer Austausch Dienst (DAAD); [IST-027268-POP]; The work was supported financially by Deutsche Forschungsgemeinschaft Research Training Group 885-NeuroAct (to B.M.tH. and WE.), the German Academic Exchange Service (to S.E.), and by IST-027268-POP (Perception On Purpose; to P.K.). The authors are grateful to K. Libertus and H.-P, Frey for technical assistance and to C. Quigley for editorial assistance. S.E. and B.M.tH. contributed equally to this article. Correspondence concerning this article should be addressed to W. Einhduser, AG Neurophysik/FB Physik, Philipps University Marburg, Renthof 7, D-35032 Marburg, Germany (e-mail: wet@physik.uni-marburg.de). | |
dc.language.iso | en | |
dc.publisher | SPRINGER | |
dc.relation.ispartof | ATTENTION PERCEPTION & PSYCHOPHYSICS | |
dc.subject | ALLOCATION | |
dc.subject | CONTRIBUTE | |
dc.subject | EYE-MOVEMENTS | |
dc.subject | FEATURES | |
dc.subject | GUIDANCE | |
dc.subject | OVERT ATTENTION | |
dc.subject | Psychology | |
dc.subject | Psychology, Experimental | |
dc.subject | SELECTION | |
dc.subject | SHIFTS | |
dc.subject | STATISTICS | |
dc.subject | VISUAL-SEARCH | |
dc.title | Saliency on a natural scene background: Effects of color and luminance contrast add linearly | |
dc.type | journal article | |
dc.identifier.doi | 10.3758/APP.71.6.1337 | |
dc.identifier.isi | ISI:000268350700014 | |
dc.description.volume | 71 | |
dc.description.issue | 6 | |
dc.description.startpage | 1337 | |
dc.description.endpage | 1352 | |
dc.contributor.orcid | 0000-0003-3654-5267 | |
dc.contributor.orcid | 0000-0001-7516-9589 | |
dc.contributor.orcid | 0000-0002-0045-3769 | |
dc.contributor.orcid | 0000-0002-4782-5603 | |
dc.contributor.researcherid | ABB-2380-2020 | |
dc.contributor.researcherid | A-3041-2012 | |
dc.identifier.eissn | 1943393X | |
dc.publisher.place | 233 SPRING ST, NEW YORK, NY 10013 USA | |
dcterms.isPartOf.abbreviation | Atten. Percept. Psychophys. | |
dcterms.oaStatus | Bronze | |
crisitem.author.dept | Institut für Kognitionswissenschaft | - |
crisitem.author.dept | FB 05 - Biologie/Chemie | - |
crisitem.author.deptid | institute28 | - |
crisitem.author.deptid | fb05 | - |
crisitem.author.orcid | 0000-0002-4782-5603 | - |
crisitem.author.orcid | 0000-0003-3654-5267 | - |
crisitem.author.parentorg | FB 08 - Humanwissenschaften | - |
crisitem.author.parentorg | Universität Osnabrück | - |
crisitem.author.grandparentorg | Universität Osnabrück | - |
crisitem.author.netid | OnSe001 | - |
crisitem.author.netid | KoPe298 | - |
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