2001 Fiscal Year Final Research Report Summary

Effects of bright light exposure on sleep-wake patterns in the elderly

Research Project

Project/Area Number	12670339
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Single-year Grants
Section	一般
Research Field	Public health/Health science
Research Institution	Hokkaido University
Principal Investigator	KOBAYASHI Riko Health administration center, Hokkaido University, lecturer, 保健管理センター, 講師 (90281823)
Co-Investigator(Kenkyū-buntansha)	FUKUDA Noriko College of medical technology, Hokkaido University, assistant professor, 医療技術短期大学部, 助教授 (20173354)
Project Period (FY)	2000 – 2001
Keywords	elderly / sleep disorder / bright light / sleep inventory / polysomnography / activity / institutionalized aged / light condition
Research Abstract	The effects of bright light exposure in patients were investigated. 8001x bright light exposure was performed for 3 weeks in the light therapy room. Clinical ratings of sleep-wakefulness improved in eight patients. The score of difficulty in falling sleep and drowsiness in the morning declined during the light exposure. The score of drowsiness in the afternoon decreased during the post light exposure. Post-exposure ocular disorders were not found.

(4 results)