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Differences in Stereoscopic Luster Evoked by Static and Dynamic Stimuli
We compared the classic static stereoscopic luster phenomenon with a recently described dynamic variant (“counter modulation”) to investigate whether they are related to the same or different processes. In the experiments, we presented pairs of center-surround stimuli haploscopically and measured th...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
SAGE Publications
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6537268/ https://www.ncbi.nlm.nih.gov/pubmed/31205668 http://dx.doi.org/10.1177/2041669519846133 |
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author | Wendt, Gunnar Faul, Franz |
author_facet | Wendt, Gunnar Faul, Franz |
author_sort | Wendt, Gunnar |
collection | PubMed |
description | We compared the classic static stereoscopic luster phenomenon with a recently described dynamic variant (“counter modulation”) to investigate whether they are related to the same or different processes. In the experiments, we presented pairs of center-surround stimuli haploscopically and measured the effect of the contrast between center colors on perceived luster. The center colors were either static or temporally modulated. In addition, we examined five color conditions (one achromatic, two equiluminant, and two mixed conditions) and three background conditions that influence the channel-wise polarities of the contrast of the two centers to the common surround. The results for static and dynamic stimuli differed in several ways, suggesting that they depend on different mechanisms: Compared with the static version, in dynamic stimuli, luster was perceived at markedly lower contrasts, did not depend on the sign of the contrast polarities, and appeared more steady. However, both phenomena seem also similar in some respects: In both cases, equiluminant stimuli led to lustrous impressions that were considerably less strong than those evoked by stimuli containing luminance variation, and the strength of the perceived luster was generally boosted with reversed contrast polarities. |
format | Online Article Text |
id | pubmed-6537268 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | SAGE Publications |
record_format | MEDLINE/PubMed |
spelling | pubmed-65372682019-06-14 Differences in Stereoscopic Luster Evoked by Static and Dynamic Stimuli Wendt, Gunnar Faul, Franz Iperception Article We compared the classic static stereoscopic luster phenomenon with a recently described dynamic variant (“counter modulation”) to investigate whether they are related to the same or different processes. In the experiments, we presented pairs of center-surround stimuli haploscopically and measured the effect of the contrast between center colors on perceived luster. The center colors were either static or temporally modulated. In addition, we examined five color conditions (one achromatic, two equiluminant, and two mixed conditions) and three background conditions that influence the channel-wise polarities of the contrast of the two centers to the common surround. The results for static and dynamic stimuli differed in several ways, suggesting that they depend on different mechanisms: Compared with the static version, in dynamic stimuli, luster was perceived at markedly lower contrasts, did not depend on the sign of the contrast polarities, and appeared more steady. However, both phenomena seem also similar in some respects: In both cases, equiluminant stimuli led to lustrous impressions that were considerably less strong than those evoked by stimuli containing luminance variation, and the strength of the perceived luster was generally boosted with reversed contrast polarities. SAGE Publications 2019-05-17 /pmc/articles/PMC6537268/ /pubmed/31205668 http://dx.doi.org/10.1177/2041669519846133 Text en © The Author(s) 2019 http://creativecommons.org/licenses/by/4.0/ Creative Commons CC-BY: This article is distributed under the terms of the Creative Commons Attribution 4.0 License (http://www.creativecommons.org/licenses/by/4.0/) which permits any use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage). |
spellingShingle | Article Wendt, Gunnar Faul, Franz Differences in Stereoscopic Luster Evoked by Static and Dynamic Stimuli |
title | Differences in Stereoscopic Luster Evoked by Static and Dynamic
Stimuli |
title_full | Differences in Stereoscopic Luster Evoked by Static and Dynamic
Stimuli |
title_fullStr | Differences in Stereoscopic Luster Evoked by Static and Dynamic
Stimuli |
title_full_unstemmed | Differences in Stereoscopic Luster Evoked by Static and Dynamic
Stimuli |
title_short | Differences in Stereoscopic Luster Evoked by Static and Dynamic
Stimuli |
title_sort | differences in stereoscopic luster evoked by static and dynamic
stimuli |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6537268/ https://www.ncbi.nlm.nih.gov/pubmed/31205668 http://dx.doi.org/10.1177/2041669519846133 |
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