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Parallel Adaptation to Spatially Distinct Distortions
Optical distortions as a visual disturbance are inherent in many optical devices such as spectacles or virtual reality headsets. In such devices, distortions vary spatially across the visual field. In progressive addition lenses, for example, the left and right regions of the lens skew the periphera...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7715010/ https://www.ncbi.nlm.nih.gov/pubmed/33329178 http://dx.doi.org/10.3389/fpsyg.2020.544867 |
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author | Sauer, Yannick Wahl, Siegfried Rifai, Katharina |
author_facet | Sauer, Yannick Wahl, Siegfried Rifai, Katharina |
author_sort | Sauer, Yannick |
collection | PubMed |
description | Optical distortions as a visual disturbance are inherent in many optical devices such as spectacles or virtual reality headsets. In such devices, distortions vary spatially across the visual field. In progressive addition lenses, for example, the left and right regions of the lens skew the peripheral parts of the wearers visual field in opposing directions. The human visual system adapts to homogeneous distortions and the respective aftereffects are transferred to non-retinotopic locations. This study investigates simultaneous adaptation to two opposing distortions at different retinotopic locations. Two oppositely skewed natural image sequences were presented to 10 subjects as adaptation stimuli at two distinct locations in the visual field. To do so, subjects were instructed to keep fixation on a target. Eye tracking was used for gaze control. Change of perceived motion direction was measured in a direction identification task. The point of subjective equality (PSE), that is, the angle at which a group of coherently moving dots was perceived as moving horizontal, was determined for both retinal locations. The shift of perceived motion direction was evaluated by comparing PSE before and after adaptation. A significant shift at both retinal locations in the direction of the skew distortion of the corresponding adaptation stimulus is demonstrated. Consequently, parallel adaptation to two opposing distortions in a retinotopic reference frame was confirmed by this study. |
format | Online Article Text |
id | pubmed-7715010 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-77150102020-12-15 Parallel Adaptation to Spatially Distinct Distortions Sauer, Yannick Wahl, Siegfried Rifai, Katharina Front Psychol Psychology Optical distortions as a visual disturbance are inherent in many optical devices such as spectacles or virtual reality headsets. In such devices, distortions vary spatially across the visual field. In progressive addition lenses, for example, the left and right regions of the lens skew the peripheral parts of the wearers visual field in opposing directions. The human visual system adapts to homogeneous distortions and the respective aftereffects are transferred to non-retinotopic locations. This study investigates simultaneous adaptation to two opposing distortions at different retinotopic locations. Two oppositely skewed natural image sequences were presented to 10 subjects as adaptation stimuli at two distinct locations in the visual field. To do so, subjects were instructed to keep fixation on a target. Eye tracking was used for gaze control. Change of perceived motion direction was measured in a direction identification task. The point of subjective equality (PSE), that is, the angle at which a group of coherently moving dots was perceived as moving horizontal, was determined for both retinal locations. The shift of perceived motion direction was evaluated by comparing PSE before and after adaptation. A significant shift at both retinal locations in the direction of the skew distortion of the corresponding adaptation stimulus is demonstrated. Consequently, parallel adaptation to two opposing distortions in a retinotopic reference frame was confirmed by this study. Frontiers Media S.A. 2020-11-20 /pmc/articles/PMC7715010/ /pubmed/33329178 http://dx.doi.org/10.3389/fpsyg.2020.544867 Text en Copyright © 2020 Sauer, Wahl and Rifai. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Psychology Sauer, Yannick Wahl, Siegfried Rifai, Katharina Parallel Adaptation to Spatially Distinct Distortions |
title | Parallel Adaptation to Spatially Distinct Distortions |
title_full | Parallel Adaptation to Spatially Distinct Distortions |
title_fullStr | Parallel Adaptation to Spatially Distinct Distortions |
title_full_unstemmed | Parallel Adaptation to Spatially Distinct Distortions |
title_short | Parallel Adaptation to Spatially Distinct Distortions |
title_sort | parallel adaptation to spatially distinct distortions |
topic | Psychology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7715010/ https://www.ncbi.nlm.nih.gov/pubmed/33329178 http://dx.doi.org/10.3389/fpsyg.2020.544867 |
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