Primer on Reproducible Research in R: Enhancing Transparency and Scientific Rigor DOI Creative Commons
Mushfiqul Anwar Siraji,

Munia Rahman

Clocks & Sleep, Journal Year: 2023, Volume and Issue: 6(1), P. 1 - 10

Published: Dec. 20, 2023

Achieving research reproducibility is a precarious aspect of scientific practice. However, many studies across disciplines fail to be fully reproduced due inadequate dissemination methods. Traditional publication practices often provide comprehensive description the context and procedures, hindering reproducibility. To address these challenges, this article presents tutorial on reproducible using R programming language. The aims equip researchers, including those with limited coding knowledge, necessary skills enhance in their work. It covers three essential components: version control Git, dynamic document creation rmarkdown, managing package dependencies renv. also provides insights into sharing offers specific considerations for field sleep chronobiology research. By following tutorial, researchers can adopt that transparency, rigor, replicability work, contributing culture advancing knowledge.

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
Effects of daytime exposure to short-wavelength-enriched white light on alertness and cognitive function among moderately sleep-restricted university students DOI Creative Commons
Mushfiqul Anwar Siraji, Leilah K Grant, Alexandre Schaefer

et al.

Building and Environment, Journal Year: 2024, Volume and Issue: 252, P. 111245 - 111245

Published: Feb. 2, 2024

We examined the impact of an 8-h exposure to short-wavelength-enriched white light during day on cognitive performance, alertness, and mood moderately sleep-restricted university students in a simulated classroom setting. A total 28 participants (mean age: 23.57 ± 2.69; 19 female) were assigned one two conditions, each with equal melanopic daylight efficacy ratio (melDER∼0.9). However, they differed photopic illuminances, falling within upper lower limits prescribed standards for lighting: low illuminance (LI; 309.33 3.04 horizontal 128.26 7.37 vertical EDI lux) high (HI; 513 12.59 213.70 11.62 lux). Cognitive procedural memory, declarative subjective evaluated using N-back Task, Finger Tapping Free Recall Modified Karolinska Sleepiness Scale, Visual Analogue Scales, respectively. No statistically significant differences observed any measures between lighting conditions (p.adjusted > 0.05). These results indicate that exposures at illuminances current do not adversely affect mood, as assessed this study. findings have meaningful implications design, providing opportunity enhance energy efficiency without compromising working mood.

Language: Английский

Citations

4
Rhythms of light: Understanding the role of circadian timing in alertness and cognitive performance DOI
Renske Lok

Handbook of clinical neurology, Journal Year: 2025, Volume and Issue: unknown, P. 17 - 26

Published: Jan. 1, 2025

Language: Английский

Citations

0
The Impact of Spatial Light Patterns on Environmental Perception, Mood, and Preference of Older Adults in Assisted Living Facilities DOI
Nasrin Golshany, Ihab Elzeyadi

LEUKOS The Journal of the Illuminating Engineering Society of North America, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 26

Published: Feb. 5, 2025

Language: Английский

Citations

0
Evidence-based public health messaging on the non-visual effects of ocular light exposure: A modified Delphi expert consensus DOI Creative Commons
Manuel Spitschan, Laura Kervezee, Oliver Stefani

et al.

medRxiv (Cold Spring Harbor Laboratory), Journal Year: 2025, Volume and Issue: unknown

Published: May 8, 2025

In addition to vision, light regulates circadian rhythms, sleep, mood and alertness. Despite growing scientific understanding, there remains a gap in translating this knowledge into accessible, evidence-based guidance for the public policymakers. To formulate scientifically grounded statements about influence of on human psychological physiological health, intended dissemination An international consortium 21 experts convened at Ladenburg Roundtable April 2024 develop consensus-based health messages effects light. Experts were selected based their contributions chronobiology, psychology, neuroscience, measurement practical application Through structured, iterative modified Delphi process involving multiple rounds drafting, anonymous feedback, revision, 27 developed. Each statement included simplified public-facing version contextual information support understanding. Consensus was assessed using predefined thresholds agreement (>75% endorsement). Statements not meeting consensus revised re-evaluated. Of proposed statements, 26 reached threshold consensus, with high levels across diverse topics, including properties light, its effects, individual variability, research gaps. One did reach due insufficient evidence excluded, while another feedback subsequently accepted. The revision significantly improved clarity, accuracy, accessibility final statements. A readability assessment showed an average sentence length 14.8 words Flesch-Kincaid Grade Level 8.6, indicating that suit broad, non-specialist audience. are available lightforpublichealth.org. This expert provides clear, accessible how affects health. By understandable guidance, offer tool education policymaking. can be used by public-health multipliers (e.g., schools, employers, healthcare providers, urban planners) promote healthier exposure daily life. They highlight importance recognizing as key factor alongside nutrition, physical activity.

Language: Английский

Citations

0
Non-Image-Forming Effects of Daytime Electric Light Exposure in Humans: A Systematic Review and Meta-Analyses of Physiological, Cognitive, and Subjective Outcomes DOI Creative Commons
Ruta Lasauskaite, Larissa N. Wüst, Isabel Schöllhorn

et al.

LEUKOS The Journal of the Illuminating Engineering Society of North America, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 42

Published: May 16, 2025

Language: Английский

Citations

0
Melanopsin Vision DOI
Daniel S. Joyce, Kevin W. Houser, Stuart N. Peirson

et al.

Published: Dec. 15, 2022

Intrinsically photosensitive retinal ganglion cells (ipRGCs) are the most recently discovered photoreceptor class in human retina. This Element integrates new knowledge and perspectives from visual neuroscience, psychology, sleep science architecture to discuss how melanopsin-mediated ipRGC functions can be measured their circuits manipulated. It reveals contemporary emerging lighting technologies as powerful tools set mind, brain behaviour.

Language: Английский

Citations

13
Chronotype delay and sleep disturbances shaped by the Antarctic polar night DOI Creative Commons

Camila Tortello,

Agustín Folgueira, José M. López

et al.

Scientific Reports, Journal Year: 2023, Volume and Issue: 13(1)

Published: Sept. 24, 2023

Chronotype is a reliable biomarker for studying the influence of external zeitgebers on circadian entrainment. Assessment chronotype variation in participants exposed to extreme photoperiods may be useful investigate how changes light-dark cycle modulate system. This study aimed examine and sleep during winter campaign at Argentine Antarctic station Belgrano II. A sample 82 men who overwintered Antarctica completed Munich Questionnaire March (daylight length: 18.6 h), May 2.8 July 0 September 14.5 November 24 h). The main results showed decrease duration delay social jetlag polar night, highlighting cues impact lack natural light rhythms.

Language: Английский

Citations

8
Effects of blue-enriched white light with same correlated colour temperature on visual fatigue DOI
Yin Zhang, Yan Tu, Linlin Wang

et al.

Lighting Research & Technology, Journal Year: 2023, Volume and Issue: 56(4), P. 381 - 402

Published: July 26, 2023

Visual fatigue has become a public health issue, while the relevant retinal mechanism and characteristics of blue light that induce visual have been rarely studied. In retina, both short wavelength-sensitive (S) cones melanopsin-containing intrinsically photoreceptive ganglion cells (ipRGCs) are sensitive to light, their responses opposite in pupil mediation. Thus, effects blue-enriched white with different S-cone-opic Equivalent Daylight Illuminance (EDI) on was investigated, maintaining same melanopic EDI avoid interferences ipRGCs. Two illuminants (one low EDI, other high EDI) were characterized based α-opic correlated colour temperature illuminance. Melanopic lower than these two illuminants. Psychological, visual, physiological cognitive performances measured investigate fatigue. Results showed can Participants felt more discomfort eyes under along decline tear film stability changes heart rhythm. Furthermore, reaction time memory task increased significantly EDI. The findings provide new insights into optimization indoor lighting environments for human health.

Language: Английский

Citations

5
Acute effects of light during daytime on central aspects of attention and affect: A systematic review DOI Creative Commons
Louise Bruland Bjerrum,

Inger Hilde Nordhus,

Lin Sørensen

et al.

Biological Psychology, Journal Year: 2024, Volume and Issue: 192, P. 108845 - 108845

Published: July 7, 2024

Light regulates both image- and various non-image forming responses in humans, including acute effects on attention affect. To advance the understanding of light's immediate effects, this systematic review describes monochromatic/narrow bandwidth polychromatic white light during daytime distinct aspects (alertness, sustained attention, working memory, attentional control flexibility), measures affect (self-report measures, performance-based tests, psychophysiological measures) healthy, adult human subjects. Original, peer-reviewed (quasi-) experimental studies published between 2000 May 2024 were included according to predefined inclusion exclusion criteria. Study quality was assessed, results synthesized across grouped interventions; monochromatic/narrowband-width or (regular white, bright with high correlated color temperature (CCT)). Results from (n = 62) showed that alertness memory most affected by light. Electroencephalographic markers improved exposure narrow long-wavelength light, regular CCT. Self-reported testing flexibility inconclusive. Performance-based only influenced Polychromatic exerted mixed self-reported Studies strongly heterogeneous terms stimuli characteristics reporting variables influencing effects.

Language: Английский

Citations

1