Salience-based object prioritization during active viewing of naturalistic scenes in young and older adults

Abstract Whether fixation selection in real-world scenes is guided by image salience or by objects has been a matter of scientific debate. To contrast the two views, we compared effects of location-based and object-based visual salience in young and older (65 + years) adults. Generalized linear mixe...

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Autores principales:	Antje Nuthmann, Immo Schütz, Wolfgang Einhäuser
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/543dd6d1c1ac46cd9935a91980b749b5
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spelling	oai:doaj.org-article:543dd6d1c1ac46cd9935a91980b749b52021-12-02T13:34:00ZSalience-based object prioritization during active viewing of naturalistic scenes in young and older adults10.1038/s41598-020-78203-72045-2322https://doaj.org/article/543dd6d1c1ac46cd9935a91980b749b52020-12-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-78203-7https://doaj.org/toc/2045-2322Abstract Whether fixation selection in real-world scenes is guided by image salience or by objects has been a matter of scientific debate. To contrast the two views, we compared effects of location-based and object-based visual salience in young and older (65 + years) adults. Generalized linear mixed models were used to assess the unique contribution of salience to fixation selection in scenes. When analysing fixation guidance without recurrence to objects, visual salience predicted whether image patches were fixated or not. This effect was reduced for the elderly, replicating an earlier finding. When using objects as the unit of analysis, we found that highly salient objects were more frequently selected for fixation than objects with low visual salience. Interestingly, this effect was larger for older adults. We also analysed where viewers fixate within objects, once they are selected. A preferred viewing location close to the centre of the object was found for both age groups. The results support the view that objects are important units of saccadic selection. Reconciling the salience view with the object view, we suggest that visual salience contributes to prioritization among objects. Moreover, the data point towards an increasing relevance of object-bound information with increasing age.Antje NuthmannImmo SchützWolfgang EinhäuserNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-18 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Antje Nuthmann Immo Schütz Wolfgang Einhäuser Salience-based object prioritization during active viewing of naturalistic scenes in young and older adults
description	Abstract Whether fixation selection in real-world scenes is guided by image salience or by objects has been a matter of scientific debate. To contrast the two views, we compared effects of location-based and object-based visual salience in young and older (65 + years) adults. Generalized linear mixed models were used to assess the unique contribution of salience to fixation selection in scenes. When analysing fixation guidance without recurrence to objects, visual salience predicted whether image patches were fixated or not. This effect was reduced for the elderly, replicating an earlier finding. When using objects as the unit of analysis, we found that highly salient objects were more frequently selected for fixation than objects with low visual salience. Interestingly, this effect was larger for older adults. We also analysed where viewers fixate within objects, once they are selected. A preferred viewing location close to the centre of the object was found for both age groups. The results support the view that objects are important units of saccadic selection. Reconciling the salience view with the object view, we suggest that visual salience contributes to prioritization among objects. Moreover, the data point towards an increasing relevance of object-bound information with increasing age.
format	article
author	Antje Nuthmann Immo Schütz Wolfgang Einhäuser
author_facet	Antje Nuthmann Immo Schütz Wolfgang Einhäuser
author_sort	Antje Nuthmann
title	Salience-based object prioritization during active viewing of naturalistic scenes in young and older adults
title_short	Salience-based object prioritization during active viewing of naturalistic scenes in young and older adults
title_full	Salience-based object prioritization during active viewing of naturalistic scenes in young and older adults
title_fullStr	Salience-based object prioritization during active viewing of naturalistic scenes in young and older adults
title_full_unstemmed	Salience-based object prioritization during active viewing of naturalistic scenes in young and older adults
title_sort	salience-based object prioritization during active viewing of naturalistic scenes in young and older adults
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/543dd6d1c1ac46cd9935a91980b749b5
work_keys_str_mv	AT antjenuthmann saliencebasedobjectprioritizationduringactiveviewingofnaturalisticscenesinyoungandolderadults AT immoschutz saliencebasedobjectprioritizationduringactiveviewingofnaturalisticscenesinyoungandolderadults AT wolfgangeinhauser saliencebasedobjectprioritizationduringactiveviewingofnaturalisticscenesinyoungandolderadults
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Salience-based object prioritization during active viewing of naturalistic scenes in young and older adults

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