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Blue light aids in coping with the post-lunch dip: an EEG study

机译:蓝光有助于应对午餐后的跌落:一项脑电图研究

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摘要

The 'post-lunch dip' is a commonly experienced period of drowsiness in the afternoon hours. If this inevitable period can be disrupted by an environmental cue, the result will be enhanced workplace performance. Because blue light is known to be a critical cue for entraining biological rhythms, we investigated whether blue light illumination can be a practical strategy for coping with the post-lunch dip. Twenty healthy participants underwent a continuous performance test, during which the electroencephalogram (EEG) was recorded under four different illumination conditions: dark ( < 0.3 lx), 33% blue-enriched light, 66% blue-enriched light and white polychromatic light. As a result, exposure to blue-enriched light during the post-lunch dip period significantly reduced the EEG alpha activity, and increased task performance. Since desynchronisation of alpha activity reflects enhancement of vigilance, our findings imply that blue light might disrupt the post-lunch dip. Subsequent exploration of illumination parameters will be beneficial for possible chronobiological and ergonomic applications.
机译:午饭后的“午饭后浸水”通常是一个困倦的时期。如果这个不可避免的时期可以被环境提示打扰,那么结果将是提高工作场所的绩效。因为众所周知,蓝光是培养生物节律的关键提示,所以我们研究了蓝光照明是否可以作为应对午餐后蘸餐的一种实用策略。二十名健康参与者进行了一项持续的性能测试,在此过程中,在四种不同的照明条件下记录了脑电图(EEG):暗(<0.3 lx),33%的蓝色光,66%的蓝色光和白色多色光。结果,在午餐后的蘸餐期间暴露于富含蓝色的光下会显着降低脑电图alpha活性,并提高任务绩效。由于alpha活动的不同步反映了警惕性的增强,因此我们的发现表明,蓝光可能会破坏午餐后的倾角。随后对照明参数的探索对于可能的时间生物学和人体工程学应用将是有益的。

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