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. 2022 Dec 15;12:21704. doi: 10.1038/s41598-022-26323-7

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© The Author(s) 2022

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Illustration of the screen output of the software to measure contrast sensitivity in R, G, and B. In the top right of each picture, the appearance of the stimuli is illustrated but during the real test, they cover a major part of the screen (diameter of the circular pattern 400 pixel). In the bottom, the output of the staircase procedure is shown.