Decreased functional connectivity within the salience network after two-week morning bright light exposure in individuals with sleep disturbances: a preliminary randomized controlled trial

Bright light (BL) exposure is a safe non-pharmacological intervention for sleep disturbances. However, the functional brain correlates underlying the effects of bright light exposure need to be further clarified. As alterations in the salience network were reported in individuals with sleep disturba...

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Bibliographic Details
Published in:Sleep medicine 2020-10, Vol.74, p.66-72
Main Authors: Ma, Jiyoung, Kim, Myeongju, Kim, Jungyoon, Hong, Gahae, Namgung, Eun, Park, Shinwon, Lim, Soo Mee, Lyoo, In Kyoon, Yoon, Sujung
Format: Article
Language:English
Subjects:
Bright light exposure
Neuroimaging
Resting-state functional connectivity
Salience network
Sleep disturbance
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Summary:Bright light (BL) exposure is a safe non-pharmacological intervention for sleep disturbances. However, the functional brain correlates underlying the effects of bright light exposure need to be further clarified. As alterations in the salience network were reported in individuals with sleep disturbances, we have investigated whether bright light exposure may improve sleep quality by altering functional connectivity in this network. In the current study, 30 individuals with sleep disturbances were randomly assigned to one of the two interventions for two weeks: (1) 1 h of bright light (10,000 lux) exposure (BL-exposed group) and (2) 1 h of dim light (
ISSN:1389-9457
1878-5506
DOI:10.1016/j.sleep.2020.05.009