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Trials of bright light exposure and melatonin administration in a patient with non‐24 hour sleep‐wake syndrome
Author(s) -
HAYAKAWA TATSURO,
KAMEI YUICHI,
URATA JUJIRO,
SHIBUI KAYO,
OZAKI SHIGERU,
UCHIYAMA MAKOTO,
OKAWA MASAKO
Publication year - 1998
Publication title -
psychiatry and clinical neurosciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.609
H-Index - 74
eISSN - 1440-1819
pISSN - 1323-1316
DOI - 10.1111/j.1440-1819.1998.tb01064.x
Subject(s) - melatonin , morning , evening , circadian rhythm , entrainment (biomusicology) , dark therapy , medicine , sleep (system call) , rhythm , anesthesia , psychology , physics , astronomy , computer science , operating system
We report a patient with non‐24 h sleep‐wake syndrome (non‐24) whose free‐running sleep‐wake cycle was successfully treated with both scheduled bright light exposure and melatonin treatment. In the present study, morning bright light as well as evening melatonin phase‐advanced sleep‐wake cycles and melatonin rhythm. Both these procedures achieved appropriate entrainment to a 24 h day. However, the patient did not continue morning bright light therapy after the discharge. Rising at appropriate times in the morning for bright light therapy was difficult for him to continue. Melatonin treatment was better tolerated because of its ease of application.