Effect of short duration morning bright light in elderly men: Sleep structure
- 1 June 2000
- journal article
- research article
- Published by Wiley in Psychiatry and Clinical Neurosciences
- Vol. 54 (3) , 367-368
- https://doi.org/10.1046/j.1440-1819.2000.00718.x
Abstract
Sleep structure was measured in five healthy elderly men in their homes. The subjects were exposed to bright light (6000 lx) for 30 min in the morning or instructed to sit in front of a desktop lighting device without light. Relative to the control conditions, bright light exposure significantly decreased time in bed and the number of awakenings. Rapid eye movement sleep was significantly fragmented by stage 1 sleep in the control condition compared with the bright light condition. These findings indicate that a short duration of morning bright light changes sleep structure and is effective in maintaining sleep.Keywords
This publication has 5 references indexed in Scilit:
- Effects of short duration morning bright light in healthy elderly. II:Sleep and motor activityPsychiatry and Clinical Neurosciences, 1998
- Effects of short duration morning bright light in healthy elderly subjects. I:Subjective feeling and ophthalmological examinationsPsychiatry and Clinical Neurosciences, 1998
- The Effect of Evening Bright Light in Delaying the Circadian Rhythms and Lengthening the Sleep of Early Morning Awakening InsomniacsSleep, 1993
- Alleviation of Sleep Maintenance Insomnia with Timed Exposure to Bright LightJournal of the American Geriatrics Society, 1993
- Ambulatory Monitoring of Sleep‐Wakefulness Patterns in Healthy Elderly Males and Females (>88 Years): The “Senieur” ProtocolJournal of the American Geriatrics Society, 1992