{"title":"Effects of dynamic lighting on neurobehavioral performance under different mental states in the working area of a space station.","authors":"YanJie Li, WeiNing Fang, Ting Jiang, Hongqiang Yu, Rui Zhao, Wenhao Zhan, Zhe Sun, YuZheng Li","doi":"10.1080/00140139.2025.2544814","DOIUrl":null,"url":null,"abstract":"<p><p>During spaceflight, astronauts are exposed to multiple environmental stressors, which significantly impact their performance. Artificial lighting, as the primary or even sole light source, plays a critical role due to its non-visual effects. However, whether dynamic lighting (DL) can serve as a sensory stimulus to improve performance remains unclear. This study aimed to investigate the non-visual effects and neural mechanisms of DL. A total of 30 participants took part in a single-blind, within-subjects experiment employing a 2 (static vs. dynamic light) × 2 (mental states: fatigue vs. non-fatigue) design. Participants completed a series of tasks under different experimental conditions to assess their neurobehavioral performance under DL. The results demonstrated that exposure to DL selectively improved cognition, but did not yield significant benefits for subjective alertness or mood. EEG analysis revealed that lower-frequency bands, particularly theta and alpha, were highly sensitive to DL, primarily reflecting its suppressive effects on these bands.</p>","PeriodicalId":50503,"journal":{"name":"Ergonomics","volume":" ","pages":"1-21"},"PeriodicalIF":2.4000,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ergonomics","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1080/00140139.2025.2544814","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, INDUSTRIAL","Score":null,"Total":0}
引用次数: 0
Abstract
During spaceflight, astronauts are exposed to multiple environmental stressors, which significantly impact their performance. Artificial lighting, as the primary or even sole light source, plays a critical role due to its non-visual effects. However, whether dynamic lighting (DL) can serve as a sensory stimulus to improve performance remains unclear. This study aimed to investigate the non-visual effects and neural mechanisms of DL. A total of 30 participants took part in a single-blind, within-subjects experiment employing a 2 (static vs. dynamic light) × 2 (mental states: fatigue vs. non-fatigue) design. Participants completed a series of tasks under different experimental conditions to assess their neurobehavioral performance under DL. The results demonstrated that exposure to DL selectively improved cognition, but did not yield significant benefits for subjective alertness or mood. EEG analysis revealed that lower-frequency bands, particularly theta and alpha, were highly sensitive to DL, primarily reflecting its suppressive effects on these bands.
期刊介绍:
Ergonomics, also known as human factors, is the scientific discipline that seeks to understand and improve human interactions with products, equipment, environments and systems. Drawing upon human biology, psychology, engineering and design, Ergonomics aims to develop and apply knowledge and techniques to optimise system performance, whilst protecting the health, safety and well-being of individuals involved. The attention of ergonomics extends across work, leisure and other aspects of our daily lives.
The journal Ergonomics is an international refereed publication, with a 60 year tradition of disseminating high quality research. Original submissions, both theoretical and applied, are invited from across the subject, including physical, cognitive, organisational and environmental ergonomics. Papers reporting the findings of research from cognate disciplines are also welcome, where these contribute to understanding equipment, tasks, jobs, systems and environments and the corresponding needs, abilities and limitations of people.
All published research articles in this journal have undergone rigorous peer review, based on initial editor screening and anonymous refereeing by independent expert referees.