Investigation of macro and micro sleep structures of first night effect in school-aged children

IF 1 4区 医学 Q4 CLINICAL NEUROLOGY
Minori Enomoto, Taisuke Eto, Shingo Kitamura
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Abstract

This study aimed to investigate the occurrence and age-related changes of the first night effect (FNE) in school-age children using both macro (sleep architecture) and micro (frequency analysis) structures to polysomnography (PSG) data. PSG data from two consecutive nights were obtained from 38 healthy children aged 6–15 years. Sleep variables and power spectral analysis were compared between the two nights. The relationship between age and the difference in sleep variables and power values between the two nights was examined using correlation analysis. The first night showed significant reductions in total sleep time, sleep efficiency, N1, N2, and REM sleep, as well as significant increases in sleep onset latency and wake after sleep onset. The decrease in N3 and the increase in N2 due to FNE were positively and negatively correlated with age, respectively. Spectral analysis showed no effect of FNE for most variables, but there was a trend toward an increase in the convergence value of the δ band with age. FNE occurs in school-age children, and its manifestation changes with age. The decrease in N3 and increase in N2 become more pronounced with age, while the enhancement of low-frequency power is consistent across ages. These findings highlight the importance of considering age and specific sleep indicators when interpreting pediatric PSG results and underscore the need for a multi-level approach to understanding sleep changes across development.

Abstract Image

学龄儿童初夜效应的宏观和微观睡眠结构调查
本研究旨在利用多导睡眠图(PSG)数据的宏观(睡眠结构)和微观(频率分析)结构,研究学龄儿童初夜效应(FNE)的发生及其与年龄相关的变化。我们从 38 名 6-15 岁的健康儿童身上获得了连续两晚的 PSG 数据。比较了两个晚上的睡眠变量和功率谱分析。通过相关分析,研究了年龄与两晚睡眠变量和功率值差异之间的关系。第一个晚上的总睡眠时间、睡眠效率、N1、N2 和快速动眼期睡眠时间明显减少,而睡眠开始潜伏期和睡眠开始后唤醒时间则明显增加。FNE导致的N3减少和N2增加分别与年龄呈正相关和负相关。频谱分析表明,FNE 对大多数变量没有影响,但随着年龄的增长,δ 波段的收敛值有增加的趋势。FNE 发生在学龄儿童身上,其表现随年龄而变化。随着年龄的增长,N3 的减少和 N2 的增加变得更加明显,而低频功率的增强在不同年龄段是一致的。这些发现凸显了在解释儿科 PSG 结果时考虑年龄和特定睡眠指标的重要性,并强调需要采用多层次的方法来了解整个发育过程中的睡眠变化。
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来源期刊
Sleep and Biological Rhythms
Sleep and Biological Rhythms 医学-临床神经学
CiteScore
2.20
自引率
9.10%
发文量
71
审稿时长
>12 weeks
期刊介绍: Sleep and Biological Rhythms is a quarterly peer-reviewed publication dealing with medical treatments relating to sleep. The journal publishies original articles, short papers, commentaries and the occasional reviews. In scope the journal covers mechanisms of sleep and wakefullness from the ranging perspectives of basic science, medicine, dentistry, pharmacology, psychology, engineering, public health and related branches of the social sciences
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