Temporal analysis of image-rivalry suppression.

During binocular rivalry, perception alternates between two different images presented one to each eye. At any moment, one image is visible, dominant, while the other is invisible, suppressed. Alternations in perception during rivalry could involve competition between eyes, eye-rivalry, or between i...

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Autores principales: Rishi Bhardwaj, Robert P O'Shea
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Publicado: Public Library of Science (PLoS) 2012
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Acceso en línea:https://doaj.org/article/73bcbe4abf194d4cadd73f42b98bf724
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spelling oai:doaj.org-article:73bcbe4abf194d4cadd73f42b98bf7242021-11-18T08:14:13ZTemporal analysis of image-rivalry suppression.1932-620310.1371/journal.pone.0045407https://doaj.org/article/73bcbe4abf194d4cadd73f42b98bf7242012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23049797/?tool=EBIhttps://doaj.org/toc/1932-6203During binocular rivalry, perception alternates between two different images presented one to each eye. At any moment, one image is visible, dominant, while the other is invisible, suppressed. Alternations in perception during rivalry could involve competition between eyes, eye-rivalry, or between images, image-rivalry, or both. We measured response criteria, sensitivities, and thresholds to brief contrast increments to one of the rival stimuli in conventional rivalry displays and in a display in which the rival stimuli swapped between the eyes every 333 ms-swap rivalry-that necessarily involves image rivalry. We compared the sensitivity and threshold measures in dominance and suppression to assess the strength of suppression. We found that response criteria are essentially the same during dominance and suppression for the two sorts of rivalry. Critically, we found that swap-rivalry suppression is weak after a swap and strengthens throughout the swap interval. We propose that image rivalry is responsible for weak initial suppression immediately after a swap and that eye rivalry is responsible for the stronger suppression that comes later.Rishi BhardwajRobert P O'SheaPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 9, p e45407 (2012)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Rishi Bhardwaj
Robert P O'Shea
Temporal analysis of image-rivalry suppression.
description During binocular rivalry, perception alternates between two different images presented one to each eye. At any moment, one image is visible, dominant, while the other is invisible, suppressed. Alternations in perception during rivalry could involve competition between eyes, eye-rivalry, or between images, image-rivalry, or both. We measured response criteria, sensitivities, and thresholds to brief contrast increments to one of the rival stimuli in conventional rivalry displays and in a display in which the rival stimuli swapped between the eyes every 333 ms-swap rivalry-that necessarily involves image rivalry. We compared the sensitivity and threshold measures in dominance and suppression to assess the strength of suppression. We found that response criteria are essentially the same during dominance and suppression for the two sorts of rivalry. Critically, we found that swap-rivalry suppression is weak after a swap and strengthens throughout the swap interval. We propose that image rivalry is responsible for weak initial suppression immediately after a swap and that eye rivalry is responsible for the stronger suppression that comes later.
format article
author Rishi Bhardwaj
Robert P O'Shea
author_facet Rishi Bhardwaj
Robert P O'Shea
author_sort Rishi Bhardwaj
title Temporal analysis of image-rivalry suppression.
title_short Temporal analysis of image-rivalry suppression.
title_full Temporal analysis of image-rivalry suppression.
title_fullStr Temporal analysis of image-rivalry suppression.
title_full_unstemmed Temporal analysis of image-rivalry suppression.
title_sort temporal analysis of image-rivalry suppression.
publisher Public Library of Science (PLoS)
publishDate 2012
url https://doaj.org/article/73bcbe4abf194d4cadd73f42b98bf724
work_keys_str_mv AT rishibhardwaj temporalanalysisofimagerivalrysuppression
AT robertposhea temporalanalysisofimagerivalrysuppression
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