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Video analysis of gross body movements during sleep
Author(s) -
SHIMOHIRA MASAYUKI,
SHIIKI TOSHIHIDE,
SUGIMOTO JUNKO,
OHSAWA YUKIKO,
FUKUMIZU MICHIO,
HASEGAWA TAKESHI,
IWAKAWA YOSHIHIDE,
NOMURA YOSHIKO,
SEGAWA MASAYA
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.tb01015.x
Subject(s) - sleep (system call) , chin , gross motor skill , sleep stages , psychology , medicine , physical medicine and rehabilitation , audiology , neuroscience , anatomy , motor skill , polysomnography , electroencephalography , computer science , operating system
Gross body movements (GM) during sleep, classified into four GM types by the involved parts of body, were evaluated using two‐dimensional video analysis in five normal children aged 4–12 years. The rate of occurrence of all GM types showed apparent sleep stage dependency. Among four GM types, GM‐1 (GM with axial rotation) was the most frequent. Averaged duration of GM‐1 was the longest. A total of 77.2% of GM‐1 started with the contraction of chin muscle and 35% of total sleep changes (tSC) were related to GM. A total of 5.6% of tSC following GM shifted to the deeper stage. Further evaluation is necessary in order to understand the physiological mechanism of GM.