Light is known to be an important modulator of circadian rhythms. We tested the hypothesis that an enduring increase in the daytime environmental illumination level improves restactivity rhythm disturbances in demented patients. Actigraphy was performed before, during, and after 4 weeks of increased illumination in the living rooms of 22 patients with dementia clinically diagnosed as probable Alzheimer’s disease, multi-infarct dementia, dementia associated with alcoholism, or normal pressure hydrocephalus. The results indicated that during increased illumination, the stability of the rest-activity rhythm increased in patients with intact vision, but not in visually impaired patients.

NPCRA Reference Paper

Keywords: Alzheimer’s disease, dementia, circadian rhythm disturbance, bright light, sleep, actigraphy

Direct Link: https://doi.org/10.1016/S0006-3223(97)89928-3

Journal: Biological psychiatry. 1997 May 1;41(9):955-63

Keywords: NPCRA,

Applications: Reference,

CamNtech Reference: NP98001

Back to Search Results

UK & International customers

CamNtech Ltd.
Manor Farm
Fenstanton
Cambridgeshire
PE28 9JD, UK

US customers

CamNtech Inc.
630 Boerne Stage Airfield,
Boerne,
Texas 78006,
USA

Copyright

© 2020 CamNtech Ltd and CamNtech Inc

Company information

Registered in England No. 2221302
VAT No: GB486 3019 34

Company information

VAT No: GB486 3019 34

Privacy Policy