Cited by 1,278Circadian rhythm and melatoninImpact of Light on Environment and HealthLight effects on plants

Measuring and using light in the melanopsin age

Open access
Lucas, Robert J., Peirson, Stuart N., Berson, David M., Brown, Timothy M., Cooper, Howard M., Czeisler, Charles A., Figueiro, Mariana G., Gamlin, Paul D. +6 more·2014·Trends in Neurosciences

Abstract

Light is a potent stimulus for regulating circadian, hormonal, and behavioral systems. In addition, light therapy is effective for certain affective disorders, sleep problems, and circadian rhythm disruption. These biological and behavioral effects of light are influenced by a distinct photoreceptor in the eye, melanopsin-containing intrinsically photosensitive retinal ganglion cells (ipRGCs), in addition to conventional rods and cones. We summarize the neurophysiology of this newly described sensory pathway and consider implications for the measurement, production, and application of light. A new light-measurement strategy taking account of the complex photoreceptive inputs to these non-visual responses is proposed for use by researchers, and simple suggestions for artificial/architectural lighting are provided for regulatory authorities, lighting manufacturers, designers, and engineers.

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  • Lux is an inappropriate measure for estimating light's impact on melatonin suppression, circadian-phase shifting, and other non-image-forming retinal effects.

    “For this reason, it has recently been proposed that lux is an inappropriate measure for estimation of the impact of light on melatonin suppression, circadian-phase shifting, and other non -imageforming effects of retinal light exposure (35).”
  • Melatonin exhibits beneficial actions on cardiovascular health by enhancing endothelial function, maintaining metabolic homeostasis, and reducing inflammation.

    “They also exhibit beneficial actions on cardiovascular health by enhancing endothelial function, maintaining metabolic homeostasis,38 and reducing inflammation.39,40”

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  1. [6]Human circadian rhythms: Regulation and impact Journal of Biological Rhythms 2005 20 4 279 386
  2. [11]CIE, Commission Internationale de l’Éclairage Proceedings, 1924 1926 Cambridge Cambridge University Press

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Authors
Lucas, R. J., Peirson, S. N., Berson, D. M., Brown, T. M., Cooper, H. M., Czeisler, C. A., Figueiro, M. G., Gamlin, P. D., Lockley, S. W., O’Hagan, J. B., Price, L. L. A., Provencio, I., Skene, D. J., & Brainard, G. C.
Affiliations
  • University of Manchester (GB)
  • University of Oxford (GB)
  • Brown University (US)
  • Inserm (FR)
  • Brigham and Women's Hospital (US)
  • Rensselaer Polytechnic Institute (US)
  • University of Alabama at Birmingham (US)
  • Public Health England (GB)
  • University of Virginia (US)
  • University of Surrey (GB)
  • Thomas Jefferson University (US)
Corresponding author
  • Lucas, Robert J.
  • Brainard, George C.
Venue
Trends in Neurosciences
Publisher
Elsevier BV
Published
2014-01
Volume
37
Issue
1
Pages
1-9
ISSN
0166-2236 (ISSN-L)
OpenAlex
W2106496774
Cited by
1,278
References
87
Citations by year
2026: 118 · 2025: 119 · 2024: 110 · 2023: 108 · 2022: 108 · 2021: 119 · 2020: 115 · 2019: 136 · 2018: 107 · 2017: 90 · 2016: 68 · 2015: 58 · 2014: 20 · 2012: 1
FWCI
5.80
Type
journal article
Language
en
Open access
Locations
  • Trends in Neurosciences (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • The Medicine Forum (submittedVersion)
  • Surrey Research Insight Open Access (The University of Surrey) (submittedVersion)
  • Research Explorer (The University of Manchester) (submittedVersion)
Funders
  • Biotechnology and Biological Sciences Research Council (BB/I021086/1, BB/I007296/1, BB/K002252/1, BB/I017836/1)
  • National Eye Institute (R01EY012793, R01EY017137)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
  • Physical Sciences › Environmental Science › Global and Planetary Change › Impact of Light on Environment and Health
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Light effects on plants
Keywords
melanopsin, intrinsically photosensitive retinal ganglion cells, non-visual photoreception, circadian regulation, phototherapy, light measurement, artificial lighting design, circadian rhythm disruption, mood disorders, sleep disorders
MeSH terms
Melanopsin, Animals, Circadian Rhythm, Humans, Photoreceptor Cells, Phototherapy, Retinal Ganglion Cells, Rod Opsins

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