{"title":"Visual discomfort and chromatic flickers.","authors":"Sanae Yoshimoto, Hinako Iizuka, Tatsuto Takeuchi","doi":"10.1016/j.visres.2024.108520","DOIUrl":null,"url":null,"abstract":"<p><p>Flickering patterns that shift in chromaticity can be uncomfortable and may trigger epileptic seizures, though the underlying factors are not fully understood. In the spatial domain, chromatic contrast in images is a potential predictor of visual discomfort, with higher contrast generally leading to increased discomfort. This study investigated whether chromatic contrast between two flickering colors in a uniform field influences discomfort. Participants rated their subjective discomfort for various flickering color combinations defined by the CIE L*a*b* uniform color space. Overall, discomfort increased with both chromatic and brightness contrasts. Additionally, flickers containing highly saturated red generally caused greater discomfort compared to those without red, an effect not observed with low saturation. Our findings suggest that visual discomfort induced by time-varying chromatic patterns is partly influenced by chromatic contrast over time. Furthermore, unlike the spatial domain, discomfort in the temporal domain may be specifically associated with the hue of red.</p>","PeriodicalId":23670,"journal":{"name":"Vision Research","volume":"226 ","pages":"108520"},"PeriodicalIF":1.5000,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Vision Research","FirstCategoryId":"102","ListUrlMain":"https://doi.org/10.1016/j.visres.2024.108520","RegionNum":4,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"NEUROSCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
Flickering patterns that shift in chromaticity can be uncomfortable and may trigger epileptic seizures, though the underlying factors are not fully understood. In the spatial domain, chromatic contrast in images is a potential predictor of visual discomfort, with higher contrast generally leading to increased discomfort. This study investigated whether chromatic contrast between two flickering colors in a uniform field influences discomfort. Participants rated their subjective discomfort for various flickering color combinations defined by the CIE L*a*b* uniform color space. Overall, discomfort increased with both chromatic and brightness contrasts. Additionally, flickers containing highly saturated red generally caused greater discomfort compared to those without red, an effect not observed with low saturation. Our findings suggest that visual discomfort induced by time-varying chromatic patterns is partly influenced by chromatic contrast over time. Furthermore, unlike the spatial domain, discomfort in the temporal domain may be specifically associated with the hue of red.
期刊介绍：
Vision Research is a journal devoted to the functional aspects of human, vertebrate and invertebrate vision and publishes experimental and observational studies, reviews, and theoretical and computational analyses. Vision Research also publishes clinical studies relevant to normal visual function and basic research relevant to visual dysfunction or its clinical investigation. Functional aspects of vision is interpreted broadly, ranging from molecular and cellular function to perception and behavior. Detailed descriptions are encouraged but enough introductory background should be included for non-specialists. Theoretical and computational papers should give a sense of order to the facts or point to new verifiable observations. Papers dealing with questions in the history of vision science should stress the development of ideas in the field.
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