Chronopathological aspects of sleep disorders and cognitive dysfunctions in children with visual impairments

The most important and noticeable rhythmical phenomenon observed in the human body is a sleep-wake rhythm and related physical and mental changes. The so-called circadian rhythms that vary over a period of approximately 24 hours are most important. The suprachi-asmatic nucleus of the hypothalamus is...

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Bibliographic Details
Main Author: I. A. Kelmanson
Format: Article
Language:Russian
Published: Ltd. “The National Academy of Pediatric Science and Innovation” 2016-03-01
Series:Rossijskij Vestnik Perinatologii i Pediatrii
Subjects:
Online Access:https://www.ped-perinatology.ru/jour/article/view/153
Description
Summary:The most important and noticeable rhythmical phenomenon observed in the human body is a sleep-wake rhythm and related physical and mental changes. The so-called circadian rhythms that vary over a period of approximately 24 hours are most important. The suprachi-asmatic nucleus of the hypothalamus is a primary circadian pacemaker in mammals; and light pulses out of all stimuli obtained by this structure have been mostly studied. The light pulses unrelated to visual perception serve as the most important synchronizers of circadian rhythms. Children with visual impairments lack adequate photic stimulation and hence circadian rhythm disorders develop and cognitive impairments worsen with a high probability. The most important types of sleep disorders in children with visual impairments are considered; their negative impact on a child's cognitive functions is discussed; possible correction approaches are laid down.
ISSN:1027-4065
2500-2228