Behavioural determinants of physiologically-relevant light exposure DOI Creative Commons
Anna M. Biller, Priji Balakrishnan, Manuel Spitschan

et al.

Communications Psychology, Journal Year: 2024, Volume and Issue: 2(1)

Published: Nov. 29, 2024

Abstract Light exposure triggers a range of physiological and behavioural responses that can improve challenge health well-being. Insights from laboratory studies have recently culminated in standards guidelines for measuring assessing healthy light exposure, recommendations levels. Implicit to paradigms is simplistic input-output relationship between its effects on physiology. This simplified approach ignores humans actively shape their through behaviour . article presents novel framework conceptualises as an individual meet specific, person-based needs. Key shaping behaviour, beyond technology.

Language: Английский

Light as a Modulator of Non-Image-Forming Brain Functions—Positive and Negative Impacts of Increasing Light Availability DOI Creative Commons
Islay Campbell, Roya Sharifpour, Gilles Vandewalle

et al.

Clocks & Sleep, Journal Year: 2023, Volume and Issue: 5(1), P. 116 - 140

Published: March 17, 2023

Light use is rising steeply, mainly because of the advent light-emitting diode (LED) devices. LEDs are frequently blue-enriched light sources and may have different impacts on non-image forming (NIF) system, which maximally sensitive to blue-wavelength light. Most importantly, timing LED device widespread, leading novel exposure patterns NIF system. The goal this narrative review discuss multiple aspects that we think should be accounted for when attempting predict how situation will affect impact brain functions. We first cover both image-forming pathways brain. then detail our current understanding human cognition, sleep, alertness, mood. Finally, questions concerning adoption lighting screens, offer new opportunities improve well-being, but also raise concerns about increasing exposure, detrimental health, particularly in evening.

Language: Английский

Citations

30
ENLIGHT: A consensus checklist for reporting laboratory-based studies on the non-visual effects of light in humans DOI Creative Commons
Manuel Spitschan, Laura Kervezee, Renske Lok

et al.

EBioMedicine, Journal Year: 2023, Volume and Issue: 98, P. 104889 - 104889

Published: Dec. 1, 2023

BackgroundThere is no consensus on reporting light characteristics in studies investigating non-visual responses to light. This project aimed develop a checklist for laboratory-based investigations the impact of physiology.MethodsA four-step modified Delphi process (three questionnaire-based feedback rounds and one face-to-face group discussion) involving international experts was conducted reach items be included checklist. Following process, resulting tested pilot phase with independent experts.FindingsAn initial list 61 related light-based interventions condensed final containing 25 items, based upon among (final n = 60). Nine were deemed necessary report regardless research question or context. A description each item provided accompanying Explanation Elaboration (E&E) document. The testing led minor textual clarifications E&E document.InterpretationThe ENLIGHT Checklist first consensus-based documenting ocular human studies. implementation will enhance by ensuring comprehensive documentation, enhancing reproducibility, enabling data aggregation across studies.FundingNetwork European Institutes Advanced Study (NETIAS) Constructive Thinking (CAT) programme; Sir Henry Wellcome Postdoctoral Fellowship (Wellcome Trust, 204686/Z/16/Z); Netherlands Organisation Health Research Development VENI fellowship (2020–09150161910128); U.S. Department Defense Grant (W81XWH-16-1-0223); National University Singapore (NUHSRO/2022/038/Startup/08); Foundation (NRF2022-THE004-0002).

Language: Английский

Citations

26
Species sensitivities to artificial light at night: A phylogenetically controlled multilevel meta‐analysis on melatonin suppression DOI Creative Commons
Yefeng Yang, Qiong Liu,

Chenghao Pan

et al.

Ecology Letters, Journal Year: 2024, Volume and Issue: 27(2)

Published: Feb. 1, 2024

The rapid urbanization of our world has led to a surge in artificial lighting at night (ALAN), with profound effects on wildlife. Previous research wildlife's melatonin, crucial mechanistic indicator and mediator, yielded inconclusive evidence due lack comparative analysis. We compiled analysed an base including 127 experiments 437 observations across 31 wild vertebrates using phylogenetically controlled multilevel meta-analytic models. comes mainly from the white light melatonin suppression birds mammals. show 36% average decrease secretion response ALAN diverse range species. This effect was observed for central peripheral diurnal nocturnal species, captive free-living populations. also reveal intensity-, wavelength-, timing-dependent patterns effects. Exposure 23% rise inter-individual variability suppression, important implications natural selection vertebrates, as some individuals may display higher tolerance ALAN. cross-species strong conservation populations that are subject recommend measures mitigate harmful impacts ALAN, such 'smart' systems tune spectra less compositions.

Language: Английский

Citations

15
Assessing illumination fatigue in tunnel workers through eye-tracking technology: A laboratory study DOI
Jing Li, J.-G. Zhu,

Cheng Guan

et al.

Advanced Engineering Informatics, Journal Year: 2024, Volume and Issue: 59, P. 102335 - 102335

Published: Jan. 1, 2024

Language: Английский

Citations

13
Verification, analytical validation and clinical validation (V3) of wearable dosimeters and light loggers DOI
Manuel Spitschan, K.C.H.J. Smolders, Benjamin Vandendriessche

et al.

Digital Health, Journal Year: 2022, Volume and Issue: 8, P. 205520762211448 - 205520762211448

Published: Jan. 1, 2022

Background Light exposure is an important driver and modulator of human physiology, behavior overall health, including the biological clock, sleep-wake cycles, mood alertness. can also be used as a directed intervention, e.g., in form light therapy seasonal affective disorder (SAD), jetlag prevention treatment, or to treat circadian disorders. Recently, system quantities units related physiological effects was standardized by International Commission on Illumination (CIE S 026/E:2018). At same time, biometric monitoring technologies (BioMeTs) capture personalized were developed. However, because there are currently no standard approaches evaluate digital dosimeters, need provide firm framework for characterization, calibration, reporting these sensors urgent. Objective This article provides such applying principles verification, analytic validation clinical (V3) state-of-the-art approach tools standards medicine dosimetry. Results describes opportunities use dosimeters basic research, exposure, measuring adherence both non-clinical populations light-based interventions trials.

Language: Английский

Citations

31
Review on age-related differences in non-visual effects of light: melatonin suppression, circadian phase shift and pupillary light reflex in children to older adults DOI Creative Commons
Taisuke Eto, Shigekazu Higuchi

Journal of PHYSIOLOGICAL ANTHROPOLOGY, Journal Year: 2023, Volume and Issue: 42(1)

Published: June 24, 2023

Abstract Physiological effects of light exposure in humans are diverse. Among them, the circadian rhythm phase shift effect order to maintain a 24-h cycle biological clock is referred as non-visual collectively with melatonin suppression and pupillary reflex. The may differ depending on age, clarifying age-related differences important for providing appropriate environments people different ages. Therefore, various research fields, including physiological anthropology, many studies age functions have been carried out older people, children adolescents by comparing young adults. However, whether vary and, if so, what factors contribute remained unclear. In this review, results past recent presented discussed provide clues answering question actually age. Some studies, especially focusing shown suppression, reflex, while other no differences. Studies showing suspected senile constriction crystalline lens opacity contributing differences, presence compensatory mechanism. that children’s be highly sensitive light, but groups seem limited. study detail, comparative should conducted using subjects having wide range ages much control possible intensity, wavelength component, duration, timing, illumination method exposure, (mydriasis or non-mydriasis, cataracts not adults, etc.).

Language: Английский

Citations

18
Modeling the influence of nighttime light on melatonin suppression in humans: Milestones and perspectives DOI Creative Commons

Lucia Helena Souza de Toledo,

Maria Nathália Moraes, Maristela O. Poletini

et al.

Journal of Photochemistry and Photobiology, Journal Year: 2023, Volume and Issue: 16, P. 100199 - 100199

Published: July 6, 2023

This review presents the main metrics developed so far to correlate physical properties of light and its effects on melatonin suppression. Melatonin is a hormone secreted at night production suppressed by exposure light. In this context, negative lighting high raise need for better quantification these impacts health. Different action spectroscopy methodologies have been recently used characterize circadian response mediated in humans, but there no consensus validated model. While complementary studies are still necessary reach such an ideal model, here we analyze compare results works that tested based absorption curves human melanopsin, rods cones, dynamics suppression different regimes. These reveal how spectral composition, irradiance temporality modulate function melatonin. We present milestones research field, together with discussion advances, limitations perspectives application distinct available models. Applied contexts, knowledge can bring favorable changes health environmental projects, ophthalmic lenses, screens, filters, films, other optical devices.

Language: Английский

Citations

16
Post-Occupancy Evaluation of Office Lighting – What Can We Learn from Light-Dosimetry? DOI Creative Commons
Steffen Hartmeyer,

A. M. Davies,

Marilyne Andersen

et al.

LEUKOS The Journal of the Illuminating Engineering Society of North America, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 24

Published: Jan. 9, 2025

Language: Английский

Citations

0
A higher illuminance reduces momentary exhaustion in exhausted employees: results from a field study DOI Creative Commons
Sophia Frick, K.C.H.J. Smolders, Leander van der Meij

et al.

Journal of Environmental Psychology, Journal Year: 2025, Volume and Issue: 102, P. 102543 - 102543

Published: Feb. 5, 2025

Language: Английский

Citations

0
Integrating Assessment of Circadian Rhythmicity to Improve Treatment Outcomes for Circadian Rhythm Sleep-Wake Disorders: Updates on New Treatments DOI Creative Commons

Gabrielle F. Gloston,

Kristina M. Ward,

G. Carolina Rodriguez-Torres

et al.

Current Sleep Medicine Reports, Journal Year: 2025, Volume and Issue: 11(1)

Published: Feb. 17, 2025

Abstract Purpose of Review Despite advancements in basic circadian research, development new diagnostic and treatment strategies for rhythm sleep-wake disorders (CRSWDs) has been slow. Here, we review the most recent innovations human assessment emerging therapies CRSWDs. Recent Findings Researchers have improved existing methods to overcome logistical barriers developed novel methods. New treatments CRSWDs involve pharmacological behavioral that modulate phase, amplitude, and/or robustness central clock. Summary Commercialization these tools will require overcoming barriers, such as additional testing confirm underlying pathology mechanism action potential treatments. Clinicians scientists are also called survey adjacent fields adopt may offer clarity Lastly, must continue advocate medical insurance coverage current future technologies improve patient care.

Language: Английский

Citations

0