Individual Differences in Childhood Sleep Problems Predict Later Cognitive Executive Control
Individual Differences in Childhood Sleep Problems Predict Later Cognitive Executive Control
复制标题
DOI：
10.1093/sleep/32.3.323
复制
发表时间：
2009-03-01
期刊：
影响因子：
5.6
通讯作者：
Wright, Kenneth P., Jr.
中科院分区：
文献类型：
--
作者：
Friedman, Naomi P.;Corley, Robin P.;Wright, Kenneth P., Jr.
研究目的：确定一般睡眠问题发展模式的个体差异是否与青春期后期的3种执行功能能力——抑制、更新工作记忆和任务转换相关。
参与者：来自科罗拉多纵向双胞胎研究的916对双胞胎（465名女性，451名男性）及其父母。
测量与结果：父母根据儿童行为检查表中的7项量表报告其子女在4岁、5岁、7岁以及9 - 16岁时的睡眠问题；一部分儿童（n = 568）在17岁时完成了执行功能的实验室评估。潜在变量增长曲线分析被用于模拟儿童睡眠问题纵向轨迹的个体差异。睡眠问题随时间推移而减少，约70%的儿童在4岁时有≥1个问题，约33%的儿童在16岁时有问题。然而，在问题的初始水平（截距）和随时间的变化（斜率）方面都观察到了显著的个体差异。当将执行功能潜在变量加入模型时，截距与后期的执行功能潜在变量无显著相关性；然而，斜率变量与抑制（r = -0.27）和更新（r = -0.21）能力呈显著（P < 0.05）负相关，但与转换（r = -0.10）能力无关。进一步分析表明，斜率变量可预测3种执行功能共有的方差（r = -0.29）。
结论：早期睡眠问题的水平似乎对后期的执行功能没有明显影响。然而，那些睡眠问题随时间减少更多的个体在青春期后期表现出更好的一般执行控制能力。
Study Objective: To determine whether individual differences in developmental patterns of general sleep problems are associated with 3 executive function abilities-inhibiting, updating working memory, and task shifting-in late adolescence.Participants: 916 twins (465 female, 451 male) and parents from the Colorado Longitudinal Twin Study.Measurements and Results: Parents reported their children's sleep problems at ages 4 years, 5 y, 7 y, and 9-16 y based on a 7-item scale from the Child-Behavior Checklist; a subset of children (n = 568) completed laboratory assessments of executive functions at age 17. Latent variable growth curve analyses were used to model individual differences in longitudinal trajectories of childhood sleep problems. Sleep problems declined over time, with similar to 70% of children having >= 1 problem at age 4 and similar to 33% of children at age 16. However, significant individual differences in both the initial levels of problems (intercept) and changes across time (slope) were observed. When executive function latent variables were added to the model, the intercept did not significantly correlate with the later executive function latent variables; however, the slope variable significantly (P < 0.05) negatively correlated with inhibiting (r = -0.27) and updating (r = -0.21), but not shifting (r = -0.10) abilities. Further analyses suggested that the slope variable predicted the variance common to the 3 executive functions (r = -0.29).Conclusions: Early levels of sleep problems do not seem to have appreciable implications for later executive functioning. However, individuals whose sleep problems decrease more across time show better general executive control in late adolescence.