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Author Hasegawa‐Ohira, M., Kato, Y., & Nomura, S. url  doi
  Title Effects of LED lighting exposure during sleep on endocrine and autonomic nervous system activity Type Journal Article
  Year 2019 Publication IEEJ Transactions on Electrical and Electronic Engineering Abbreviated Journal  
  Volume 14 Issue 6 Pages 894-898  
  Keywords Human Health; LED; endocrine; sleep; sympathetic nervous system; hypothalamic–pituitary–adrenal pathway  
  Abstract The present study aimed to investigate the effect of an LED lighting on endocrine and autonomic nervous system activity during sleep. In a within‐subject experimental design, participants, ten healthy male students, took a 6‐h sleep from 0:00–6:00 am in an environmentally controlled room during which they were exposed to an LED lighting of approximately 50 lx for 90 min from 1:30–3:00 am, whereas there was no light exposure under the control condition. Compared to the control condition, the heart rate (HR) during light exposure, 1 h before awakening, and 1 h after awakening, was significantly higher under the light exposure condition. Salivary melatonin under the light exposure was significantly higher than that under control condition, meanwhile there was no difference in salivary cortisol secretion. Light exposure during sleep may enhance the sympathetic nervous system activation but not give an impact on the hypothalamic–pituitary–adrenal pathway during sleep.  
  Address Faculty of Education, Shiga University, 2‐5‐1 Hiratsu Ostu, Shiga, 520‐0862 Japan;  
  Corporate Author Thesis  
  Publisher Wiley Place of Publication Editor  
  Language English Summary Language English Original Title  
  Series Editor Series Title (down) Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number IDA @ intern @ Serial 2347  
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