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Developmental Changes in Sleep Oscillations during Early Childhood
Although quantitative analysis of the sleep electroencephalogram (EEG) has uncovered important aspects of brain activity during sleep in adolescents and adults, similar findings from preschool-age children remain scarce. This study utilized our time-frequency method to examine sleep oscillations as...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Hindawi
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5563422/ https://www.ncbi.nlm.nih.gov/pubmed/28845310 http://dx.doi.org/10.1155/2017/6160959 |
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author | Olbrich, Eckehard Rusterholz, Thomas LeBourgeois, Monique K. Achermann, Peter |
author_facet | Olbrich, Eckehard Rusterholz, Thomas LeBourgeois, Monique K. Achermann, Peter |
author_sort | Olbrich, Eckehard |
collection | PubMed |
description | Although quantitative analysis of the sleep electroencephalogram (EEG) has uncovered important aspects of brain activity during sleep in adolescents and adults, similar findings from preschool-age children remain scarce. This study utilized our time-frequency method to examine sleep oscillations as characteristic features of human sleep EEG. Data were collected from a longitudinal sample of young children (n = 8; 3 males) at ages 2, 3, and 5 years. Following sleep stage scoring, we detected and characterized oscillatory events across age and examined how their features corresponded to spectral changes in the sleep EEG. Results indicated a developmental decrease in the incidence of delta and theta oscillations. Spindle oscillations, however, were almost absent at 2 years but pronounced at 5 years. All oscillatory event changes were stronger during light sleep than slow-wave sleep. Large interindividual differences in sleep oscillations and their characteristics (e.g., “ultrafast” spindle-like oscillations, theta oscillation incidence/frequency) also existed. Changes in delta and spindle oscillations across early childhood may indicate early maturation of the thalamocortical system. Our analytic approach holds promise for revealing novel types of sleep oscillatory events that are specific to periods of rapid normal development across the lifespan and during other times of aberrant changes in neurobehavioral function. |
format | Online Article Text |
id | pubmed-5563422 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Hindawi |
record_format | MEDLINE/PubMed |
spelling | pubmed-55634222017-08-27 Developmental Changes in Sleep Oscillations during Early Childhood Olbrich, Eckehard Rusterholz, Thomas LeBourgeois, Monique K. Achermann, Peter Neural Plast Research Article Although quantitative analysis of the sleep electroencephalogram (EEG) has uncovered important aspects of brain activity during sleep in adolescents and adults, similar findings from preschool-age children remain scarce. This study utilized our time-frequency method to examine sleep oscillations as characteristic features of human sleep EEG. Data were collected from a longitudinal sample of young children (n = 8; 3 males) at ages 2, 3, and 5 years. Following sleep stage scoring, we detected and characterized oscillatory events across age and examined how their features corresponded to spectral changes in the sleep EEG. Results indicated a developmental decrease in the incidence of delta and theta oscillations. Spindle oscillations, however, were almost absent at 2 years but pronounced at 5 years. All oscillatory event changes were stronger during light sleep than slow-wave sleep. Large interindividual differences in sleep oscillations and their characteristics (e.g., “ultrafast” spindle-like oscillations, theta oscillation incidence/frequency) also existed. Changes in delta and spindle oscillations across early childhood may indicate early maturation of the thalamocortical system. Our analytic approach holds promise for revealing novel types of sleep oscillatory events that are specific to periods of rapid normal development across the lifespan and during other times of aberrant changes in neurobehavioral function. Hindawi 2017 2017-08-15 /pmc/articles/PMC5563422/ /pubmed/28845310 http://dx.doi.org/10.1155/2017/6160959 Text en Copyright © 2017 Eckehard Olbrich et al. http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Article Olbrich, Eckehard Rusterholz, Thomas LeBourgeois, Monique K. Achermann, Peter Developmental Changes in Sleep Oscillations during Early Childhood |
title | Developmental Changes in Sleep Oscillations during Early Childhood |
title_full | Developmental Changes in Sleep Oscillations during Early Childhood |
title_fullStr | Developmental Changes in Sleep Oscillations during Early Childhood |
title_full_unstemmed | Developmental Changes in Sleep Oscillations during Early Childhood |
title_short | Developmental Changes in Sleep Oscillations during Early Childhood |
title_sort | developmental changes in sleep oscillations during early childhood |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5563422/ https://www.ncbi.nlm.nih.gov/pubmed/28845310 http://dx.doi.org/10.1155/2017/6160959 |
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