Effects of television luminance and wavelength at habitual bedtime on melatonin and cortisol secretion in humans

Yoko Komada, Kazuyuki Aoki, Seiichi Gohshi, Hideki Ichioka, Shigenobu Shibata*

*この研究の対応する著者

研究成果: Article査読

5 被引用数 (Scopus)

抄録

The aim of this study was to examine the effect of exposure to different types of television displays at habitual bedtime on human melatonin and cortisol secretion. Thirteen male participants (mean age: 22.7 ± 0.85 years) were tested over three nights in one baseline and two experimental sessions. Participants were instructed to watch a movie on four different luminance- and wavelength-controlled television displays: normal luminance (450 candela [cd]/m2) or high luminance (1200cd/m2) and normal blue light or half blue light. Salivary melatonin and cortisol levels were measured at two time points before and after television viewing. There was no significant difference in cortisol secretion due to the different displays. Melatonin suppression was significantly lower following the exposure to the half-blue light display compared with the normal blue light display. These results suggest that the use of half-blue light displays during night time may prevent circadian rhythm dysfunction.

本文言語English
ページ(範囲)316-322
ページ数7
ジャーナルSleep and Biological Rhythms
13
4
DOI
出版ステータスPublished - 2015 10
外部発表はい

ASJC Scopus subject areas

  • 生理学
  • 神経心理学および生理心理学
  • 神経学
  • 生理学(医学)

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