A higher illuminance induces alertness even during office hours: findings on subjective measures, task performance and heart rate measures

Physiology & Behavior
K C H J SmoldersP J M Cluitmans

Abstract

Nocturnal white light exposure has shown marked results on subjective and objective indicators of alertness, vitality and mood, yet effects of white light during daytime and under usual office work conditions have not been investigated extensively. The current study employed a mixed-group design (N=32), testing effects of two illuminance levels (200lx or 1000lx at eye level, 4000K) during one hour of morning versus afternoon exposure. In four repeated blocks, subjective reports, objective performance and physiological arousal were measured. Results showed effects of illuminance on subjective alertness and vitality, sustained attention in tasks, and heart rate and heart rate variability. Participants felt less sleepy and more energetic in the high versus the low lighting condition, had shorter reaction times on the psychomotor vigilance task and increased physiological arousal. Effects of illuminance on the subjective measures, as well as those on heart rate were not dependent on time of day or duration of exposure. Performance effects were most pronounced in the morning sessions and towards the end of the one-hour exposure period. The effect on heart rate variability was also most pronounced at the end of the one-hour exposure....Continue Reading

References

Sep 1, 1991·Physiology & Behavior·P BadiaJ R Harsh
May 1, 1990·The International Journal of Neuroscience·T Akerstedt, M Gillberg
Nov 22, 1996·Neuroscience Letters·Y SaitoY Hishikawa
Aug 19, 1999·Journal of Biological Rhythms·F A ScheerR M Buijs
Jan 10, 2002·Statistics in Medicine·Donna K Pauler, Nan M Laird
Jan 18, 2002·Journal of Applied Physiology·Derk-Jan Dijk, Steven W Lockley
Feb 6, 2003·Journal of Biological Rhythms·Till RoennebergMartha Merrow
Mar 5, 2004·Journal of Sleep Research·Arne LowdenRoger Wibom
Sep 10, 2004·Behavior Research Methods, Instruments, & Computers : a Journal of the Psychonomic Society, Inc·Sylvia LohDrew Dawson
Apr 1, 2005·The American Journal of Psychiatry·Robert N GoldenCharles B Nemeroff
Jan 1, 1996·International Journal of Behavioral Medicine·K I VanderZeeH de Haes
Aug 22, 2006·Current Biology : CB·Gilles VandewallePierre Maquet
Oct 24, 2006·Physiology & Behavior·Katharina Blatter, Christian Cajochen
May 9, 2007·Industrial Health·Kosuke KaidaYasumasa Otsuka
Dec 11, 2007·Cognitive Neuropsychology·Christina SchmidtPhilippe Peigneux
Sep 26, 2008·Scandinavian Journal of Work, Environment & Health·Antoine U ViolaDerk-Jan Dijk
Jun 24, 2009·PLoS Biology·Derk-Jan Dijk, Simon N Archer
Sep 15, 2009·Trends in Cognitive Sciences·Gilles VandewalleDerk-Jan Dijk
Oct 27, 2010·Proceedings of the National Academy of Sciences of the United States of America·G VandewalleP Maquet
Jun 2, 2011·Journal of Biological Rhythms·Gilles VandewallePierre Maquet
Oct 18, 2011·Physiology & Behavior·Claus BarkmannMichael Schulte-Markwort

❮ Previous
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Citations

Jun 24, 2015·Chronobiology International·Vanja Hommes, Marina C Giménez
Jul 15, 2015·Acta Physiologica·M te KulveW D van Marken Lichtenbelt
Jul 29, 2015·Behavioural Brain Research·L M HuibertsY A W de Kort
Nov 22, 2013·Applied Psychology. Health and Well-being·Femke Beute, Yvonne A W de Kort
Apr 29, 2015·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·Wen-Juan HuaFang-Biao Tao
Feb 14, 2015·Sleep Medicine·Jitka A I Virag
Aug 19, 2014·Behavioural Brain Research·Levent SahinMariana G Figueiro
Oct 30, 2014·European Journal of Applied Physiology·Lorenzo TonettiVincenzo Natale
Dec 23, 2016·Proceedings. Biological Sciences·Shu K E TamStuart N Peirson
Apr 4, 2017·Physiology & Behavior·Marije Te KulveWouter D van Marken Lichtenbelt
Mar 16, 2018·International Journal of Environmental Research and Public Health·Minqi YangGuofu Zhou
Sep 8, 2018·Journal of Biological Rhythms·Renske LokYvonne A W de Kort
Apr 30, 2019·Journal of Pineal Research·Renske LokRoelof A Hut
Sep 18, 2018·Journal of Circadian Rhythms·Taleb AskaripoorMehdi Samavati
Dec 10, 2019·Work : a Journal of Prevention, Assessment, and Rehabilitation·J van DuijnhovenH S M Kort
Jul 18, 2020·International Journal of Environmental Research and Public Health·LesLee FunderburkDebra Harris
Sep 8, 2018·Journal of Biological Rhythms·Renske LokDomien G M Beersma
Aug 23, 2020·Sensors·Charikleia Papatsimpa, Jean-Paul Linnartz
Apr 12, 2020·International Journal of Environmental Research and Public Health·Rui ZhangLiangliang Su
Apr 25, 2018·Journal of Physiological Anthropology·Wolfgang SchobersbergerVeronika Leichtfried
Nov 7, 2017·Frontiers in Neurology·Sarah L ChellappaChristian Cajochen
Dec 5, 2018·Obesity Reviews : an Official Journal of the International Association for the Study of Obesity·W D van Marken LichtenbeltM Te Kulve
Oct 30, 2018·Concussion·Adam C Raikes, William Ds Killgore
Mar 23, 2021·Frontiers in Human Neuroscience·Jui-Tai ChenChin-An Wang
Jun 17, 2021·Chronobiology International·Kirsi HonkalampiTuula Oksanen

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