(Article of periodic en Anglais - 2013)

Document title

Lighting characteristics during the polar day and their impact on changes in melatonin secretion

Authors(s) and Affiliation(s)

WIECZOREK J. (1 2) ; BŁAŻEJCZYK K. (2 3) ; MORITA T. (4) ;
(1) College of Interfaculty Individual Studies in Mathematics and Natural Sciences, Univ., Warszawa, POLOGNE
(2) Fac. of Geography and Regional Studies, Univ., Warszawa, POLOGNE
(3) Inst. of Geography and Spatial Organization, Polish Academy of Sciences, Warszawa, POLOGNE
(4) Fukuoka Women's Univ., Fac. of Human Environmental Science, Fukuoka, JAPON


The field experiment was carried out in Poland and Norway so the impact of the selected radiation stimuli on melatonin production could be carried out in conditions of natural constant lighting. This paper presents the results of the preliminary analysis of the research conducted from 22 May to 12 June 2011. The distribution of daily outdoor photosynthetically active radiation (PAR) intensity, which is a spectral distribution of solar visible radiation in selected times of the day were analyzed. Lighting conditions surrounding each subject (doses of reached energy of visible solar radiation and illumination intensity) were examined as well. Additional adaptation stress caused by different biothermal conditions (expressed by UTCI index) was also taken into consideration. Diurnal melatonin concentrations were determined in saliva samples


Article of periodic

published at : Geographia polonica / ISSN 0016-7282 / CODEN GGPLAE

Editor : Państwowe Wydawnictwo Naukowe, Warszawa - POLOGNE (1964)

Millesime : 2013, vol. 86, no1 [pp. 67-75]

Bibliographic references : 16 ref.

Collation : 6 fig., 2 tabl.



INIST-CNRS, Cote INIST : 12059

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.7163/GPol.2013.8

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
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