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Nineteen‐hour variation of postural sway, alertness and rectal temperature during sleep deprivation
Author(s) -
Nakano Toshio,
Araki Kazunori,
Michimori Akihiro,
Inbe Hiroyuki,
Hagiwara Hiroshi,
Koyama Emi
Publication year - 2001
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 - 10.1046/j.1440-1819.2001.00858.x
Subject(s) - alertness , morning , sleep deprivation , rectal temperature , balance (ability) , audiology , psychology , medicine , sleep (system call) , physical medicine and rehabilitation , physical therapy , anesthesia , circadian rhythm , psychiatry , computer science , operating system
Abstract Nineteen‐hour variation of postural sway, alertness and rectal temperature during sleep deprivation were studied. Alertness decreased gradually at night and remained low until morning. Postural sway in the eyes‐closed condition increased during early morning. In six of the eight subjects the greatest sway was observed during the 3‐h period when rectal temperature was at its minimum. It is suggested that unbearable sleepiness during sleep deprivation will give rise to measurable impairment of postural balance especially during the time zone of temperature nadir.