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Author Paul, M.A.; Love, R.J.; Hawton, A.; Brett, K.; McCreary, D.R.; Arendt, J. url  doi
openurl 
  Title Sleep deficits in the high Arctic summer in relation to light exposure and behaviour: use of melatonin as a countermeasure Type Journal Article
  Year 2015 Publication Sleep Medicine Abbreviated Journal Sleep Medicine  
  Volume Issue Pages  
  Keywords Human Health; Sleep  
  Abstract  
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  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language (down) Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1389-9457 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number LoNNe @ christopher.kyba @ Serial 1093  
Permanent link to this record
 

 
Author Crowley, S.J.; Suh, C.; Molina, T.A.; Fogg, L.F.; Sharkey, K.M.; Carskadon, M.A. url  doi
openurl 
  Title Estimating the dim light melatonin onset of adolescents within a 6-h sampling window: the impact of sampling rate and threshold method Type Journal Article
  Year 2015 Publication Sleep Medicine Abbreviated Journal Sleep Medicine  
  Volume 20 Issue Pages 59-66  
  Keywords Human Health  
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  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language (down) Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1389-9457 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number LoNNe @ kyba @ Serial 1324  
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Author Peixoto, C.A.T.; da Silva, A.G.T.; Carskadon, M.A.; Louzada, F.M. url  doi
openurl 
  Title Adolescents living in homes without electric lighting have earlier sleep times Type Journal Article
  Year 2009 Publication Behavioral Sleep Medicine Abbreviated Journal Behav Sleep Med  
  Volume 7 Issue 2 Pages 73-80  
  Keywords Human Health; Sleep  
  Abstract The aim of this project was to compare circadian rhythmicity of a group of 37 adolescents (14 girls), aged 11 to 16 (mean age = 13.1 +/- 1.7 years), with and without electricity at home. Twenty students attended morning school (07:30-11:30), and 17 attended evening school classes (19:00-22:30). Eleven adolescents had no electric lighting at home (5 attended morning classes and 6 attended evening classes). They completed a sleep log and wore a wrist actigraph for 5 consecutive days. Saliva samples were collected to assess DLMO. Data were compared by ANOVA and showed later timing and a more extended sleep period for those who attended late classes. Those adolescents without electricity at home had significantly earlier sleep onset on school days. As to DLMO, a trend to a delay was observed in the groups who had electric lighting.  
  Address Department of Physiology, Universidade Federal do Parana, Brazil. pedatardelli@yahoo.com.br  
  Corporate Author Thesis  
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  Language English Summary Language (down) Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1540-2002 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:19330580 Approved no  
  Call Number LoNNe @ kyba @ Serial 1481  
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Author Joo, E.Y.; Abbott, S.M.; Reid, K.J.; Wu, D.; Kang, J.; Wilson, J.; Zee, P.C. url  doi
openurl 
  Title Timing of light exposure and activity in adults with delayed sleep-wake phase disorder Type Journal Article
  Year 2016 Publication Sleep Medicine Abbreviated Journal Sleep Med  
  Volume 32 Issue Pages 259-265  
  Keywords Human Health  
  Abstract OBJECTIVE: To characterize the patterns of light exposure and physical activity level and assess their relationship with sleep quality and depressive symptoms in adults with delayed sleep-wake phase disorder (DSWPD). METHODS: 42 DSWPD (22 female, mean age 34.5 y) and 26 (+/-4 years) age-and-sex-matched controls (12 female, mean age 33.4 y) underwent seven days of light and activity monitoring. RESULTS: Individuals with DSWPD had significantly delayed bed times and wake times, but similar sleep duration compared to controls. Subjective sleep quality (Pittsburgh Sleep Quality Index (PSQI)) was poorer in DSWPDs compared to controls. Those with DSWPD had significantly more activity and light exposure late at night (2:00-4:00) and significantly less activity and light exposure in the morning (8:00-11:00). Total 24 h levels of light and activity were not significantly different between DSWPD and controls. However, the DSWPD group had significantly more light exposure than controls 22 h after waking, during their sleep period. Later light exposure correlated with higher depression scores [Beck Depression Index (BDI)] and poorer sleep quality (PSQI). CONCLUSIONS: The light exposure patterns observed in DSWPD likely contribute to and perpetuate the chronically delayed sleep and wake phase in these patients. In addition, increased light exposure during the sleep period may also contribute to the poor sleep quality and mood disorders that are common in these individuals.  
  Address Department of Neurology, Northwestern University, Feinberg School of Medicine, Chicago, IL, USA. Electronic address: p-zee@northwestern.edu  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language (down) Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1389-9457 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:27964860 Approved no  
  Call Number LoNNe @ kyba @ Serial 1639  
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