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A case of sub wakefulness syndrome
Author(s) -
HISANAGA AKITO,
TSUTSUMI MANABU,
YASUI SHINICHI,
FUKUDA HIDEMICHI,
TACHIBANA HIROYUKI,
HAGINO HIROFUMI,
OKABE AKIHITO,
MITA TATSUO,
SAITOH OSAMU,
KURACHI MASAYOSHI
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.tb01033.x
Subject(s) - wakefulness , non rapid eye movement sleep , multiple sleep latency test , audiology , psychology , excessive daytime sleepiness , sleep (system call) , electroencephalography , anesthesia , psychiatry , pediatrics , medicine , sleep disorder , insomnia , computer science , operating system
We report a patient, a 30‐year‐old male Japanese‐Brazilian migrant construction worker, suffering from excessive daytime sleepiness for at least 6 months. Electroencephalogram recordings during his waking states showed that 10‐Hz and 60‐µV alpha activity was present prominently in the occipital regions. From the multiple sleep latency test, it was found that stages 1–2 NREM sleep episodes appeared repetitively without any REM episodes, and that the mean sleep latency was 10.2 min. These findings support the diagnosis that this patient suffers from subwakefulness syndrome.