TY  - JOUR
T1  - SLeep in children and its disturbances
AU  - STRAUCH A
Y1  - 1919/02/01
N1  - 10.1001/archpedi.1919.04110260035004
JO  - American Journal of Diseases of Children
SP  - 118
EP  - 139
VL  - 17
IS  - 2
N2  - REMARKS ON PHYSIOLOGY OF SLEEP 
    Czerny1 in his investigations of the sleep of children examined its depth and intensity under physiologic conditions; he used, as stimulus, the opening induction current, with increasing intensity, until awakening occurred. He demonstrated that the depth of sleep in healthy children depends on the period of sleep.In very young nurslings after satiation sleep reaches its greatest intensity within the first hour, whereupon a very slow decrease ensues; after an average duration of sleep of three hours awakening takes place for the purpose of feeding. In older infants this sleep lasts somewhat longer. In two infants, 9 months old, the curve of the intensity of sleep (Fig. 1) during the whole night, demonstrates in Czerny's experiments two parts, separated from each other by a short waking interval, the maximum of depth of the second period being much less than that of the first period.
SN  - 0096-8994
M3  - doi: 10.1001/archpedi.1919.04110260035004
UR  - http://dx.doi.org/10.1001/archpedi.1919.04110260035004
ER  -