Melanopic Contribution of Display Image to Alertness, Attention, Brightness Perception, and Visual Fatigue
The melanopic contribution to visual and non-visual effects has garnered growing concern, particularly in lighting research. However, its impacts caused by display images remain understudied. This research investigated the influence of melanopic luminance of display images on visual effects like bri...
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IEEE
2025-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/11039146/ |
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| author | Nianfang Zhu Yan Tu Lili Wang Yunyang Shi |
| author_facet | Nianfang Zhu Yan Tu Lili Wang Yunyang Shi |
| author_sort | Nianfang Zhu |
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| description | The melanopic contribution to visual and non-visual effects has garnered growing concern, particularly in lighting research. However, its impacts caused by display images remain understudied. This research investigated the influence of melanopic luminance of display images on visual effects like brightness perception and visual fatigue, as well as non-visual effects such as alertness and attention based on a 65-inch four-primary display system. A 300 lx photopic environment was adopted to ensure rod saturation. The metameric images were modulated at two melanopic luminance levels (higher and lower). A multimodal assessment, including subjective brightness ratings, Karolinska Sleepiness Scale (KSS) evaluations, reaction time of Psychomotor Vigilance Task (PVT), d2 test of attention performance metrics, eye movement parameters, and visual function parameters was applied. The results showed that images with higher melanopic luminance level elicited longer fixation duration as well as fewer blinks and fixations, indicating improved attention. It was also supported by better d2 test performance at higher melanopic luminance level. Further, the difference in eye movement parameters between the two melanopic luminance levels showed that not only the Michelson contrast of the melanopic luminance levels, but also the melanopic luminance value itself played an important role. Moreover, a smaller increase in reaction time at higher melanopic luminance level implied heightened alertness, whereas the greater reduction in accommodation and convergence parameters indicated more pronounced visual fatigue. Subjective evaluation revealed that images with higher melanopic luminance level appeared brighter, supported by smaller pupil area. |
| format | Article |
| id | doaj-art-cbf9de5833ff4a80805f38b47a9ec40d |
| institution | Matheson Library |
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| language | English |
| publishDate | 2025-01-01 |
| publisher | IEEE |
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| spelling | doaj-art-cbf9de5833ff4a80805f38b47a9ec40d2025-06-30T23:00:16ZengIEEEIEEE Photonics Journal1943-06552025-01-0117411310.1109/JPHOT.2025.358066111039146Melanopic Contribution of Display Image to Alertness, Attention, Brightness Perception, and Visual FatigueNianfang Zhu0https://orcid.org/0009-0000-7836-8313Yan Tu1https://orcid.org/0000-0003-1517-1198Lili Wang2Yunyang Shi3School of Electronic Science and Engineering, Southeast University, Nanjing, ChinaSchool of Electronic Science and Engineering, Southeast University, Nanjing, ChinaSchool of Electronic Science and Engineering, Southeast University, Nanjing, ChinaSchool of Computer Science and Technology, Nanjing Tech University, Nanjing, ChinaThe melanopic contribution to visual and non-visual effects has garnered growing concern, particularly in lighting research. However, its impacts caused by display images remain understudied. This research investigated the influence of melanopic luminance of display images on visual effects like brightness perception and visual fatigue, as well as non-visual effects such as alertness and attention based on a 65-inch four-primary display system. A 300 lx photopic environment was adopted to ensure rod saturation. The metameric images were modulated at two melanopic luminance levels (higher and lower). A multimodal assessment, including subjective brightness ratings, Karolinska Sleepiness Scale (KSS) evaluations, reaction time of Psychomotor Vigilance Task (PVT), d2 test of attention performance metrics, eye movement parameters, and visual function parameters was applied. The results showed that images with higher melanopic luminance level elicited longer fixation duration as well as fewer blinks and fixations, indicating improved attention. It was also supported by better d2 test performance at higher melanopic luminance level. Further, the difference in eye movement parameters between the two melanopic luminance levels showed that not only the Michelson contrast of the melanopic luminance levels, but also the melanopic luminance value itself played an important role. Moreover, a smaller increase in reaction time at higher melanopic luminance level implied heightened alertness, whereas the greater reduction in accommodation and convergence parameters indicated more pronounced visual fatigue. Subjective evaluation revealed that images with higher melanopic luminance level appeared brighter, supported by smaller pupil area.https://ieeexplore.ieee.org/document/11039146/Melanopic luminancealertnessattentionbrightness perceptionvisual fatigue |
| spellingShingle | Nianfang Zhu Yan Tu Lili Wang Yunyang Shi Melanopic Contribution of Display Image to Alertness, Attention, Brightness Perception, and Visual Fatigue IEEE Photonics Journal Melanopic luminance alertness attention brightness perception visual fatigue |
| title | Melanopic Contribution of Display Image to Alertness, Attention, Brightness Perception, and Visual Fatigue |
| title_full | Melanopic Contribution of Display Image to Alertness, Attention, Brightness Perception, and Visual Fatigue |
| title_fullStr | Melanopic Contribution of Display Image to Alertness, Attention, Brightness Perception, and Visual Fatigue |
| title_full_unstemmed | Melanopic Contribution of Display Image to Alertness, Attention, Brightness Perception, and Visual Fatigue |
| title_short | Melanopic Contribution of Display Image to Alertness, Attention, Brightness Perception, and Visual Fatigue |
| title_sort | melanopic contribution of display image to alertness attention brightness perception and visual fatigue |
| topic | Melanopic luminance alertness attention brightness perception visual fatigue |
| url | https://ieeexplore.ieee.org/document/11039146/ |
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