The role of contextual materials in object recognition

Abstract While scene context is known to facilitate object recognition, little is known about which contextual “ingredients” are at the heart of this phenomenon. Here, we address the question of whether the materials that frequently occur in scenes (e.g., tiles in a bathroom) associated with specifi...

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Autores principales:	Tim Lauer, Filipp Schmidt, Melissa L.-H. Võ
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b6b6d4667bca4f1b9c0ef0e540e14268
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id	oai:doaj.org-article:b6b6d4667bca4f1b9c0ef0e540e14268
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spelling	oai:doaj.org-article:b6b6d4667bca4f1b9c0ef0e540e142682021-11-14T12:19:51ZThe role of contextual materials in object recognition10.1038/s41598-021-01406-z2045-2322https://doaj.org/article/b6b6d4667bca4f1b9c0ef0e540e142682021-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-01406-zhttps://doaj.org/toc/2045-2322Abstract While scene context is known to facilitate object recognition, little is known about which contextual “ingredients” are at the heart of this phenomenon. Here, we address the question of whether the materials that frequently occur in scenes (e.g., tiles in a bathroom) associated with specific objects (e.g., a perfume) are relevant for the processing of that object. To this end, we presented photographs of consistent and inconsistent objects (e.g., perfume vs. pinecone) superimposed on scenes (e.g., a bathroom) and close-ups of materials (e.g., tiles). In Experiment 1, consistent objects on scenes were named more accurately than inconsistent ones, while there was only a marginal consistency effect for objects on materials. Also, we did not find any consistency effect for scrambled materials that served as color control condition. In Experiment 2, we recorded event-related potentials and found N300/N400 responses—markers of semantic violations—for objects on inconsistent relative to consistent scenes. Critically, objects on materials triggered N300/N400 responses of similar magnitudes. Our findings show that contextual materials indeed affect object processing—even in the absence of spatial scene structure and object content—suggesting that material is one of the contextual “ingredients” driving scene context effects.Tim LauerFilipp SchmidtMelissa L.-H. VõNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Tim Lauer Filipp Schmidt Melissa L.-H. Võ The role of contextual materials in object recognition
description	Abstract While scene context is known to facilitate object recognition, little is known about which contextual “ingredients” are at the heart of this phenomenon. Here, we address the question of whether the materials that frequently occur in scenes (e.g., tiles in a bathroom) associated with specific objects (e.g., a perfume) are relevant for the processing of that object. To this end, we presented photographs of consistent and inconsistent objects (e.g., perfume vs. pinecone) superimposed on scenes (e.g., a bathroom) and close-ups of materials (e.g., tiles). In Experiment 1, consistent objects on scenes were named more accurately than inconsistent ones, while there was only a marginal consistency effect for objects on materials. Also, we did not find any consistency effect for scrambled materials that served as color control condition. In Experiment 2, we recorded event-related potentials and found N300/N400 responses—markers of semantic violations—for objects on inconsistent relative to consistent scenes. Critically, objects on materials triggered N300/N400 responses of similar magnitudes. Our findings show that contextual materials indeed affect object processing—even in the absence of spatial scene structure and object content—suggesting that material is one of the contextual “ingredients” driving scene context effects.
format	article
author	Tim Lauer Filipp Schmidt Melissa L.-H. Võ
author_facet	Tim Lauer Filipp Schmidt Melissa L.-H. Võ
author_sort	Tim Lauer
title	The role of contextual materials in object recognition
title_short	The role of contextual materials in object recognition
title_full	The role of contextual materials in object recognition
title_fullStr	The role of contextual materials in object recognition
title_full_unstemmed	The role of contextual materials in object recognition
title_sort	role of contextual materials in object recognition
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/b6b6d4667bca4f1b9c0ef0e540e14268
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The role of contextual materials in object recognition

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