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Activity patterns assessed throughout 24‐hour recordings in preterm and near term infants
Author(s) -
Giganti Fiorenza,
Cioni Giovanni,
Biagioni Enrico,
Puliti Maria Teresa,
Boldrini Antonio,
Salzarulo Piero
Publication year - 2001
Publication title -
developmental psychobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.055
H-Index - 93
eISSN - 1098-2302
pISSN - 0012-1630
DOI - 10.1002/1098-2302(200103)38:2<133::aid-dev1006>3.0.co;2-i
Subject(s) - crying , motility , physiology , audiology , medicine , psychology , biology , psychiatry , genetics
The motility of 10 low‐risk infants, aged between 34 and 40 weeks of postmenstrual age, has been continuously recorded for 24 h. Four codes were distinguished: code 1 (absence of motility or occasional occurrence of startles), code 2 (presence of small general or isolated body movements, startles, smiles, grimaces, and other facial activity), code 3 (forceful and prolonged general movements, startles, and stretches), code 4 (vigorous and abrupt general body movements accompanied by crying). Changes with age concern mainly the increase of the duration of code 1 (quiescence) episodes. Confrontation between day and night showed higher levels of motility during the night than during the day. The last weeks before term represent a time for increase in the ability to sustain a quiet behavior and to reorganize day–night motility distribution. © 2001 John Wiley & Sons, Inc. Dev Psychobiol 38: 133–142, 2001