On SAGE Insight: Non-visual effects of light: Bodily rhythms, the body clock, onset of sleep and acute alertness

Lighting Research & Technology has just published a special issue celebrating the start of its 50th volume. The articles cover the major themes of light and lighting research and celebrate the contribution of the journal to the field. The entire issue is free to access until the end of January, 2018.

Journal Editor, Peter Boyce PhD FIESNA, has curated a special collection of 27 classic articles from the preceding 49 volumes.

LR&T is the leading international peer reviewed journal that publishes the highest quality original research on the subject of light and lighting.


Article title: Non-visual effects of light: How to use light to promote circadian entrainment and elicit alertness

From Lighting Research & Technology

Light incident on the retina has a profound effect on our health and well-being because it sets the timing of our biological clock and promotes entrainment to the local time on Earth. Current lighting technologies, standards, measurement devices and applications generally have been based on the fovea’s response to a light stimulus. Entrainment of circadian rhythms has been implicated in health and well-being. Light can also elicit an acute alerting effect on people, similar to a ‘cup of coffee.’ This review summarises the literature on how light affects entrainment and alertness and how it can be used to achieve these aims.

Abstract

Among the most notable biological functions are human circadian rhythms, which are bodily rhythms that, in constant darkness, oscillate with a period close to, but typically slightly longer than 24 hours. Twenty-four-hour light–dark patterns incident on the retina are the major synchroniser of circadian rhythms to the local time on Earth. Entrainment of circadian rhythms has been implicated in health and well-being. Light can also elicit an acute alerting effect on people, similar to a ‘cup of coffee.’ This review summarises the literature on how light affects entrainment and alertness and how it can be used to achieve these aims.

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Article details

Non-visual effects of light: How to use light to promote circadian entrainment and elicit alertness
MG Figueiro, R Nagare, LLA Price,
First Published July 25, 2017
DOI: 10.1177/1477153517721598
From Lighting Research & Technology

 

 

     
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