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  • Title: [A neurophysiologic study of sleep in children during the first year of life].
    Author: Fantalova VL, Sheĭnkman OG, Molodtsova EM.
    Journal: Zh Vyssh Nerv Deiat Im I P Pavlova; 1976; 26(1):140-52. PubMed ID: 1274430.
    Abstract:
    Polygraphic investigation of day sleep has been carried out in thirty suckling infants (aged from 25 days to 12 months). EEG, OCG, SGR, respiration ECG, muscular activity, and in some infants, also rheographic parameters (REG and RG of the shin) have shown that already at an early nursing age, states of drowsiness, falling asleep, light and medium depth and deep slow sleep set in, as well as the so-called rapid sleep which occurs only after slow sleep. The denotation of the slow sleep stages is based on the classification by Loomis et al., though their electroenecepholographic expression in the infant is in many ways peculiar and undergoes certain dynamics during the first year of life. Peculiarities of the central area EEG have been exhibited in all the age groups, and it has been assumed that the central parts of the cortex of a suckling infant are a kind of "window" into the subcortical parts. While EEG, displaying new forms of activity at certain stages of sleep undergo distinct age changes, vegetative sleep manifestations display only some age depending quantitative differences. Thus, at the nursing age the mechanisms of electroencephalographic and vegetative sleep manifestations are of different degree of maturity: they possess a considerable autonomy, although they function in concord.
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