| 引用本文: | 李彦洁,方卫宁,王健新,鲍海峰.动态照明对疲劳调度员神经行为反应的影响[J].哈尔滨工业大学学报,2024,56(4):130.DOI:10.11918/202212045 |
| LI Yanjie,FANG Weining,WANG Jianxin,BAO Haifeng.Effects of dynamic lighting on neurobehavioral responses of fatigued dispatchers[J].Journal of Harbin Institute of Technology,2024,56(4):130.DOI:10.11918/202212045 |
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| 摘要: |
| 为探讨利用地铁调度中心照明环境辅助性支持设计来缓解调度员脑力疲劳以实现人机增效的可行性,研究了动态照明对疲劳调度员的影响效应及神经机制。基于实验室环境搭建了可见光谱人工照明实验平台并在此基础上调制了两种环境光照参数（常规照明:500 lx,4 000 K；动态照明:500 lx,4 000~12 000 K）,采用单因素两水平被试内设计开展人因照明工效学实验。基于地铁调度任务分析设计了分别表征持续注意、工作记忆和执行控制认知功能的PVT、N-back和MABT-Ⅱ范式,对比分析了16名被试在不同光暴露期间的主观评估、行为绩效和脑电（electroencephalogram,EEG）指标等神经行为反应差异。结果表明,相较于常规照明,疲劳被试在动态照明下的主观感觉更警觉,情绪更积极,其持续注意、工作记忆和执行控制等认知功能得到显著改善。EEG数据揭示这种疲劳干预机制可能来源于动态光线对大脑额叶区α、θ和α-θ等低频频段活动的有效抑制。当前研究初步验证了动态照明对脑力疲劳的影响效应,为城市轨道交通照明设计和疲劳管理提供依据。 |
| 关键词: 地铁调度员 动态照明 脑力疲劳 非视觉生物效应 脑电信号 |
| DOI：10.11918/202212045 |
| 分类号:TU113.6;U292.4 |
| 文献标识码:A |
| 基金项目:国家自然科学基金(72271015)；教育部产学合作育人项目(202002SJ08) |
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| Effects of dynamic lighting on neurobehavioral responses of fatigued dispatchers |
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LI Yanjie1,2,FANG Weining1,WANG Jianxin1,2,BAO Haifeng1
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(1.State Key Laboratory of Advanced Rail Autonomous Operation (Beijing Jiaotong University), Beijing 100044, China; 2.School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China)
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| Abstract: |
| To explore the feasibility of using a support design of lighting environment in subway dispatching centers to alleviate the mental fatigue of dispatchers and thus achieve human-machine efficiency enhancement, the effects and mechanism of dynamic lighting on fatigued subway dispatchers were investigated. We built a visible spectrum artificial lighting experimental platform based on the laboratory environment and modulated two lighting parameters (conventional lighting: 4 000 K, 500 lx; dynamic lighting: 4 000-12 000 K, 500 lx). On this basis, an ergonomics experiment was carried out with a single-blind within-subject design. Based on subway scheduling task analysis, PVT, N-back, and MATB-Ⅱ tasks were designed to characterize continuous attention, working memory, and executive control functions respectively. Sixteen participants’ neurobehavioral responses including subjective assessment, behavioral performance, and EEG (electroencephalogram) indicators during different ambient light were collected, compared and analyzed. The results showed that, compared with conventional lighting, fatigued participants feel more alert and have a more posive mood. Furthermore, their continuous attention, working memory, and executive control were significantly improved under dynamic lighting. The results of EEG data revealed that the fatigue intervention mechanism of dynamic lighting may be due to the effective inhibition of α, θ, and α-θ activities in the frontal lobe. The current results have preliminarily discovered the effects of dynamic lighting on mental fatigue, thus providing the basis for the lighting design and fatigue management of urban rail transit. |
| Key words: subway dispatchers dynamic lighting mental fatigue non-image forming effect electroencephalogram (EEG) |
