Color and psychological functioning: a review of theoretical and empirical work DOI Creative Commons
Andrew J. Elliot

Frontiers in Psychology, Journal Year: 2015, Volume and Issue: 6

Published: April 2, 2015

In the past decade there has been increased interest in research on color and psychological functioning. Important advances have made theoretical work empirical work, but are also important weaknesses both areas that must be addressed for literature to continue develop apace. this article, I provide brief overviews of area, each instance beginning with a historical background recent advancements, proceeding an evaluation focused guidelines future research. conclude by reiterating functioning is at nascent stage development, recommending patience prudence regarding conclusions about theory, findings, real-world application.

Language: Английский

Effects of light on human circadian rhythms, sleep and mood DOI Creative Commons
Christine Blume, Corrado Garbazza, Manuel Spitschan

et al.

Somnologie - Schlafforschung und Schlafmedizin, Journal Year: 2019, Volume and Issue: 23(3), P. 147 - 156

Published: Aug. 20, 2019

Humans live in a 24-hour environment, which light and darkness follow diurnal pattern. Our circadian pacemaker, the suprachiasmatic nuclei (SCN) hypothalamus, is entrained to solar day via pathway from retina synchronises our internal biological rhythms. Rhythmic variations ambient illumination impact behaviours such as rest during sleep activity wakefulness well their underlying processes. Rather recently, availability of artificial has substantially changed especially evening night hours. This may increase risk developing rhythm sleep-wake disorders (CRSWD), are often caused by misalignment endogenous rhythms external light-dark cycles. While exact relationship between CRSWD remains be established, nocturnal been shown alter humans. On other hand, can also used an effective noninvasive therapeutic option with little no side effects, improve sleep,mood general well-being. article reviews current state knowledge regarding effects on rhythms, sleep, mood.

Language: Английский

Citations

435
Spectral Responses of the Human Circadian System Depend on the Irradiance and Duration of Exposure to Light DOI
Joshua J. Gooley, Shantha M. W. Rajaratnam, George C. Brainard

et al.

Science Translational Medicine, Journal Year: 2010, Volume and Issue: 2(31)

Published: May 12, 2010

Light resets the circadian clock through a non–image-forming receptor system—or so it was thought; now, cone photoreceptors are shown to also participate.

Language: Английский

Citations

414
Healthy, natural, efficient and tunable lighting: four-package white LEDs for optimizing the circadian effect, color quality and vision performance DOI Creative Commons

Ji Hye Oh,

Yang Su, Young Rag

et al.

Light Science & Applications, Journal Year: 2014, Volume and Issue: 3(2), P. e141 - e141

Published: Feb. 14, 2014

To date, most current reports on the development and optimization of artificial lighting sources have focused energy performance levels limited color qualities white light-emitting diodes (LEDs). However, these properties are insufficient in terms representing all required when adjusting LEDs for healthy smart lighting. Here, we introduce essential advanced figures merit pertaining to circadian as well vision quality. We compare possible commercialized lighting, daylight four-package which consist long-wavelength pass dichroic filter (LPDF)-capped, phosphor-converted red, amber green (pc-LEDs) a blue LED. show that tunable produce effect melatonin suppression/secretion, high quality perception/reproduction, efficiency savings LED market. Researchers Korea discovered carefully designed can help optimize an individual's rhythm. Ji Hye Oh co-workers from Kookmin University studied LEDs, filter. They compared devices with variety traditional forms found such designs yield luminous efficacy, excellent rendering regulating secretion melatonin. The suggest could play important role creating systems maintain good health, bring provide optimal visualization colors.

Language: Английский

Citations

386
Sleep and Circadian Rhythms in Humans DOI Open Access
Charles A. Czeisler, Joshua J. Gooley

Cold Spring Harbor Symposia on Quantitative Biology, Journal Year: 2007, Volume and Issue: 72(1), P. 579 - 597

Published: Jan. 1, 2007

C. A. Czeisler and J. Gooley Division of Sleep Medicine, Harvard Medical School Department Brigham Women's Hospital, Boston, Massachusetts 02115

Language: Английский

Citations

370
Dim light melatonin onset (DLMO): A tool for the analysis of circadian phase in human sleep and chronobiological disorders DOI
Seithikurippu R. Pandi‐Perumal,

Marcel G. Smits,

Warren Spence

et al.

Progress in Neuro-Psychopharmacology and Biological Psychiatry, Journal Year: 2006, Volume and Issue: 31(1), P. 1 - 11

Published: Aug. 2, 2006

Language: Английский

Citations

370
Meeting Report: The Role of Environmental Lighting and Circadian Disruption in Cancer and Other Diseases DOI Creative Commons

Richard G. Stevens,

David E. Blask,

George C. Brainard

et al.

Environmental Health Perspectives, Journal Year: 2007, Volume and Issue: 115(9), P. 1357 - 1362

Published: June 14, 2007

Light, including artificial light, has a range of effects on human physiology and behavior can therefore alter when inappropriately timed. One example potential light-induced disruption is the effect light circadian organization, production several hormone rhythms. Changes in light-dark exposure (e.g., by nonday occupation or transmeridian travel) shift timing system such that internal rhythms become desynchronized from both external environment internally with each other, impairing our ability to sleep wake at appropriate times compromising physiologic metabolic processes. Light also have direct acute neuroendocrine systems, for example, suppressing melatonin synthesis elevating cortisol may untoward long-term consequences. For these reasons, National Institute Environmental Health Sciences convened workshop diverse group scientists consider how best conduct research possible connections between lighting health. According participants workshop, there are three broad areas effort need be addressed. First basic biophysical molecular genetic mechanisms phototransduction circadian, neuroendocrine, neurobehavioral regulation. Second consequences disrupting regulatory processes as production, particularly melatonin, normal neoplastic tissue growth dynamics. Third disease occurrence prognosis, prevention treatment could improved application this knowledge.

Language: Английский

Citations

353
Short-Wavelength Light Sensitivity of Circadian, Pupillary, and Visual Awareness in Humans Lacking an Outer Retina DOI Creative Commons
F H Zaidi, Joseph T. Hull, Stuart N. Peirson

et al.

Current Biology, Journal Year: 2007, Volume and Issue: 17(24), P. 2122 - 2128

Published: Dec. 1, 2007

As the ear has dual functions for audition and balance, eye a role in detecting light wide range of behavioral physiological separate from sight [1Czeisler C.A. Shanahan T.L. Klerman E.B. Martens H. Brotman D.J. Emens J.S. Klein T. Rizzo 3rd, J.F. Suppression melatonin secretion some blind patients by exposure to bright light.N. Engl. J. Med. 1995; 332: 6-11Crossref PubMed Scopus (532) Google Scholar, 2Ruberg F.L. Skene Hanifin J.P. Rollag M.D. English Arendt Brainard G.C. Melatonin regulation humans with color vision deficiencies.J. Clin. Endocrinol. Metab. 1996; 81: 2980-2985Crossref (53) 3Lockley S.W. Tabandeh Bird A.C. Defrance R. Relationship between rhythms visual loss blind.J. 1997; 82: 3763-3770Crossref (279) 4Freedman M.S. Lucas R.J. Soni B. von Schantz M. Munoz David-Gray Z. Foster Regulation mammalian circadian behavior non-rod, non-cone, ocular photoreceptors.Science. 1999; 284: 502-504Crossref (657) 5Lucas Freedman Garcia-Fernandez J.M. R.G. pineal 505-507Crossref (440) 6Brainard Greeson Byrne Glickman G. Gerner E. Action spectrum humans: Evidence novel photoreceptor.J. Neurosci. 2001; 21: 6405-6412PubMed 7Thapan K. An action suppression: non-cone photoreceptor system humans.J. Physiol. 535: 261-267Crossref (1023) 8Berson D.M. Dunn F.A. Takao Phototransduction retinal ganglion cells that set clock.Science. 2002; 295: 1070-1073Crossref (2591) 9Hattar S. Mrosovsky N. Thompson Douglas R.H. Hankins M.W. Lem Biel Hofmann F. Yau K.W. Melanopsin rod-cone photoreceptive systems account all major accessory mice.Nature. 2003; 424: 76-81Crossref (951) 10Dacey Liao H.W. Peterson B.B. Robinson F.R. Smith V.C. Pokorny Gamlin P.D. Melanopsin-expressing primate retina signal colour irradiance project LGN.Nature. 2005; 433: 749-754Crossref (1016) 11Foster Circadian vision.Curr. Biol. 2007; 17: R746-R751Abstract Full Text PDF (71) Scholar]. These responses are driven primarily stimulation photosensitive (pRGCs) most sensitive short-wavelength (∼480 nm) blue remain functional absence rods cones [8Berson We examined spectral sensitivity non-image-forming two profoundly subjects lacking (one male, 56 yr old; one female, 87 old). In male subject, we found preferentially suppressed melatonin, reset pacemaker, directly enhanced alertness compared 555 nm exposure, which is peak photopic system. an pupillary constriction, female subject exhibited (λmax) 480 nm, matching pRGCs but not cones. This was also able correctly report threshold stimulus other wavelengths. Collectively these data show contribute both physiology rudimentary awareness challenge assumption rod- cone-based photoreception mediate "visual" light.

Language: Английский

Citations

349
A model of phototransduction by the human circadian system DOI
Mark S. Rea, Mariana G. Figueiro, John D. Bullough

et al.

Brain Research Reviews, Journal Year: 2005, Volume and Issue: 50(2), P. 213 - 228

Published: Nov. 7, 2005

Language: Английский

Citations

345
Light-at-night, circadian disruption and breast cancer: assessment of existing evidence DOI Open Access

Richard G. Stevens

International Journal of Epidemiology, Journal Year: 2009, Volume and Issue: 38(4), P. 963 - 970

Published: April 20, 2009

Background Breast cancer incidence is increasing globally for largely unknown reasons. The possibility that a portion of the breast burden might be explained by introduction and use electricity to light night was suggested >20 years ago.

Language: Английский

Citations

340
LEDs for photons, physiology and food DOI
P. Morgan Pattison, J. Y. Tsao, George C. Brainard

et al.

Nature, Journal Year: 2018, Volume and Issue: 563(7732), P. 493 - 500

Published: Nov. 1, 2018

Language: Английский

Citations

335