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Incongruence in number–luminance congruency effects
Congruency tasks have provided support for an amodal magnitude system for magnitudes that have a “spatial” character, but conflicting results have been obtained for magnitudes that do not (e.g., luminance). In this study, we extricated the factors that underlie these number–luminance congruency effe...
Autores principales: | , |
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Formato: | Texto |
Lenguaje: | English |
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Springer-Verlag
2010
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3025115/ https://www.ncbi.nlm.nih.gov/pubmed/21258924 http://dx.doi.org/10.3758/s13414-010-0002-9 |
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author | Gebuis, Titia van der Smagt, Maarten J. |
author_facet | Gebuis, Titia van der Smagt, Maarten J. |
author_sort | Gebuis, Titia |
collection | PubMed |
description | Congruency tasks have provided support for an amodal magnitude system for magnitudes that have a “spatial” character, but conflicting results have been obtained for magnitudes that do not (e.g., luminance). In this study, we extricated the factors that underlie these number–luminance congruency effects and tested alternative explanations: (unsigned) luminance contrast and saliency. When luminance had to be compared under specific task conditions, we revealed, for the first time, a true influence of number on luminance judgments: Darker stimuli were consistently associated with numerically larger stimuli. However, when number had to be compared, luminance contrast, not luminance, influenced number judgments. Apparently, associations exist between number and luminance, as well as luminance contrast, of which the latter is probably stronger. Therefore, similar tasks, comprising exactly the same stimuli, can lead to distinct interference effects. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.3758/s13414-010-0002-9) contains supplementary material, which is available to authorized users. |
format | Text |
id | pubmed-3025115 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2010 |
publisher | Springer-Verlag |
record_format | MEDLINE/PubMed |
spelling | pubmed-30251152011-02-22 Incongruence in number–luminance congruency effects Gebuis, Titia van der Smagt, Maarten J. Atten Percept Psychophys Article Congruency tasks have provided support for an amodal magnitude system for magnitudes that have a “spatial” character, but conflicting results have been obtained for magnitudes that do not (e.g., luminance). In this study, we extricated the factors that underlie these number–luminance congruency effects and tested alternative explanations: (unsigned) luminance contrast and saliency. When luminance had to be compared under specific task conditions, we revealed, for the first time, a true influence of number on luminance judgments: Darker stimuli were consistently associated with numerically larger stimuli. However, when number had to be compared, luminance contrast, not luminance, influenced number judgments. Apparently, associations exist between number and luminance, as well as luminance contrast, of which the latter is probably stronger. Therefore, similar tasks, comprising exactly the same stimuli, can lead to distinct interference effects. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.3758/s13414-010-0002-9) contains supplementary material, which is available to authorized users. Springer-Verlag 2010-11-10 2011 /pmc/articles/PMC3025115/ /pubmed/21258924 http://dx.doi.org/10.3758/s13414-010-0002-9 Text en © The Author(s) 2010 https://creativecommons.org/licenses/by-nc/4.0/ This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited. |
spellingShingle | Article Gebuis, Titia van der Smagt, Maarten J. Incongruence in number–luminance congruency effects |
title | Incongruence in number–luminance congruency effects |
title_full | Incongruence in number–luminance congruency effects |
title_fullStr | Incongruence in number–luminance congruency effects |
title_full_unstemmed | Incongruence in number–luminance congruency effects |
title_short | Incongruence in number–luminance congruency effects |
title_sort | incongruence in number–luminance congruency effects |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3025115/ https://www.ncbi.nlm.nih.gov/pubmed/21258924 http://dx.doi.org/10.3758/s13414-010-0002-9 |
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