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Battle of the Mondrians: Investigating the Role of Unpredictability in Continuous Flash Suppression
In continuous flash suppression (CFS), a dynamic sequence of Mondrian patterns presented to one eye suppresses a static target in the other eye for several seconds at a time. Its effectiveness has been linked to low-level properties such as spatial frequency and orientation, but the role of higher o...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
SAGE Publications
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6108022/ https://www.ncbi.nlm.nih.gov/pubmed/30151096 http://dx.doi.org/10.1177/2041669518792930 |
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author | Han, Shui’Er Alais, David Blake, Randolph |
author_facet | Han, Shui’Er Alais, David Blake, Randolph |
author_sort | Han, Shui’Er |
collection | PubMed |
description | In continuous flash suppression (CFS), a dynamic sequence of Mondrian patterns presented to one eye suppresses a static target in the other eye for several seconds at a time. Its effectiveness has been linked to low-level properties such as spatial frequency and orientation, but the role of higher order influences remains unstudied. Here, using a tracking paradigm, we asked if the spatial and temporal predictability of the Mondrian sequence affects CFS dynamics. Predictable temporal sequences were regularly updated every 100 ms or modulated sinusoidally in pixel luminance at 2 Hz. Unpredictable temporal sequences were irregularly updated or had stochastic pixel luminance changes across time. To vary spatial predictability, sequences were either updated with different Mondrian patterns or had a fixed spatial pattern. We found a modest effect of spatial uncertainty when the target modulation was low (0.125 Hz) but not temporal uncertainty, which had no significant effects regardless of target modulation. Similar results were obtained when we pitted the standard Mondrian sequence against sequences with a fixed spatial pattern and temporally low-pass filtered sequences in a binocular rivalry paradigm. Thus, not only was the effect of information predictability was modest and spatial, but it was also dependent on the presence of higher temporal frequencies. Together, the results demonstrate the significance of low-level properties in affecting CFS dynamics and the possible involvement of pattern structure masking in CFS. |
format | Online Article Text |
id | pubmed-6108022 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | SAGE Publications |
record_format | MEDLINE/PubMed |
spelling | pubmed-61080222018-08-27 Battle of the Mondrians: Investigating the Role of Unpredictability in Continuous Flash Suppression Han, Shui’Er Alais, David Blake, Randolph Iperception Article In continuous flash suppression (CFS), a dynamic sequence of Mondrian patterns presented to one eye suppresses a static target in the other eye for several seconds at a time. Its effectiveness has been linked to low-level properties such as spatial frequency and orientation, but the role of higher order influences remains unstudied. Here, using a tracking paradigm, we asked if the spatial and temporal predictability of the Mondrian sequence affects CFS dynamics. Predictable temporal sequences were regularly updated every 100 ms or modulated sinusoidally in pixel luminance at 2 Hz. Unpredictable temporal sequences were irregularly updated or had stochastic pixel luminance changes across time. To vary spatial predictability, sequences were either updated with different Mondrian patterns or had a fixed spatial pattern. We found a modest effect of spatial uncertainty when the target modulation was low (0.125 Hz) but not temporal uncertainty, which had no significant effects regardless of target modulation. Similar results were obtained when we pitted the standard Mondrian sequence against sequences with a fixed spatial pattern and temporally low-pass filtered sequences in a binocular rivalry paradigm. Thus, not only was the effect of information predictability was modest and spatial, but it was also dependent on the presence of higher temporal frequencies. Together, the results demonstrate the significance of low-level properties in affecting CFS dynamics and the possible involvement of pattern structure masking in CFS. SAGE Publications 2018-08-22 /pmc/articles/PMC6108022/ /pubmed/30151096 http://dx.doi.org/10.1177/2041669518792930 Text en © The Author(s) 2018 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 Han, Shui’Er Alais, David Blake, Randolph Battle of the Mondrians: Investigating the Role of Unpredictability in Continuous Flash Suppression |
title | Battle of the Mondrians: Investigating the Role of Unpredictability in Continuous Flash Suppression |
title_full | Battle of the Mondrians: Investigating the Role of Unpredictability in Continuous Flash Suppression |
title_fullStr | Battle of the Mondrians: Investigating the Role of Unpredictability in Continuous Flash Suppression |
title_full_unstemmed | Battle of the Mondrians: Investigating the Role of Unpredictability in Continuous Flash Suppression |
title_short | Battle of the Mondrians: Investigating the Role of Unpredictability in Continuous Flash Suppression |
title_sort | battle of the mondrians: investigating the role of unpredictability in continuous flash suppression |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6108022/ https://www.ncbi.nlm.nih.gov/pubmed/30151096 http://dx.doi.org/10.1177/2041669518792930 |
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