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Daytime effect of monochromatic blue light on EEG activity depends on duration and timing of exposure in young men

Daytime effect of monochromatic blue light on EEG ...

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dc.contributor.author Iskra-Golec, Irena pl
dc.contributor.author Golonka, Krystyna [SAP11018378] pl
dc.contributor.author Wyczesany, Mirosław [SAP12117290] pl
dc.contributor.author Smith, Lawrence pl
dc.contributor.author Siemiginowska, Patrycja [SAP14014384] pl
dc.contributor.author Wątroba, Joanna pl
dc.date.accessioned 2017-10-25T08:05:41Z
dc.date.available 2017-10-25T08:05:41Z
dc.date.issued 2017 pl
dc.identifier.uri https://ruj.uj.edu.pl/xmlui/handle/item/45683
dc.language eng pl
dc.rights Udzielam licencji. Uznanie autorstwa 3.0 Polska *
dc.rights.uri http://creativecommons.org/licenses/by/3.0/pl/legalcode *
dc.title Daytime effect of monochromatic blue light on EEG activity depends on duration and timing of exposure in young men pl
dc.type JournalArticle pl
dc.description.physical 241-247 pl
dc.description.additional Bibliogr. s. 246-247 pl
dc.identifier.weblink http://www.ac-psych.org/en/issues/volume/13/issue/3#art225 pl
dc.abstract.en Growing evidence suggests an alerting effect of monochromatic blue light on brain activity. Little is known about the moderation of those effects by timing and duration of exposure. The present electroencephalography (EEG ) study examined such moderations on delta, theta, alpha1, alpha2, and beta EEG bands. A counterbalanced repeated-measures design was applied. The 16-hr daytime period was divided into three sessions: 07:00-12:20, 12:20-17:40, and 17:40-23:00 (timing of exposure). Two light conditions comparable in luminance but differing in wavelength were applied, namely polychromatic white light and monochromatic blue light (460 nm). There were two durations of exposure - the shorter one lasting 30 min and the longer one lasting 4 hrs. Thirty male students participated in the study. Four factors analyses of variance (ANOV As, for light conditions, timing of exposure, duration of exposure, and brain area) were performed on each EEG band. Results indicated an alerting effect of short exposure to monochromatic blue light at midday and in the evening, which was demonstrated by a decrease in lower frequency bands (alpha1, delta, and theta, respectively). Long exposure to blue light may have a reverse effect, especially in the morning and at midday, when increases in lower frequency bands (theta in the morning and theta and alpha1 at midday) were observed. It can be concluded that the daytime effect of monochromatic blue light on EEG activity depends on timing and duration of exposure. pl
dc.subject.en blue light pl
dc.subject.en EEG bands pl
dc.subject.en duration pl
dc.subject.en timing pl
dc.description.volume 13 pl
dc.description.number 3 pl
dc.description.publication 0,45 pl
dc.identifier.doi 10.5709/acp-0224-0 pl
dc.identifier.eissn 1895-1171 pl
dc.title.journal Advances in Cognitive Psychology pl
dc.language.container eng pl
dc.date.accession 2017-10-10 pl
dc.affiliation Wydział Zarządzania i Komunikacji Społecznej : Instytut Psychologii Stosowanej pl
dc.affiliation Wydział Filozoficzny : Instytut Psychologii pl
dc.subtype Article pl
dc.rights.original OTHER; otwarte czasopismo; ostateczna wersja wydawcy; w momencie opublikowania; 0; pl
.pointsMNiSW [2017 A]: 20


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Udzielam licencji. Uznanie autorstwa 3.0 Polska Except where otherwise noted, this item's license is described as Udzielam licencji. Uznanie autorstwa 3.0 Polska