睡眠限制和年龄对青少年认知的不同方面的影响
Ian G Campbell1, Courtney A Kurinec2,3, Zoey Y Zhang1
1Department of Psychiatry and Behavioral Sciences, University of California Davis, Sacramento, CA, USA.
Sleep
|September 16, 2024
概括
每晚限制睡眠时间为7小时会损害儿童和青少年的注意力和认知灵活性. 认知任务的表现随着睡眠减少而恶化,但随着年龄的增长,效果并没有显著变化.
科学领域:
- 认知神经科学 认知神经科学
- 睡眠科学 睡眠科学
- 发展心理学 发展心理学
背景情况:
- 睡眠不足与年轻人的学业成绩不佳有关.
- 了解睡眠时间对整个发育过程中的认知能力的确切影响至关重要.
研究的目的:
- 调查睡眠限制和认知表现之间的剂量反应关系.
- 为了确定睡眠不足对认知的影响是否因儿童和青少年的年龄而异.
主要方法:
- 这是一项长度研究,涉及两个群体 (年龄为9.9-16.2岁和15-22.8岁) 超过三年.
- 参与者在7,8.5或10小时后进行了四个晚上的限制时间在床上 (TIB),随后进行认知测试.
- 认知措施包括注意力控制,认知灵活性,精神运动警和工作记忆.
主要成果:
- 将TIB限制在7小时显著损害了注意力控制和认知灵活性.
- 精神运动警觉测试的表现下降了TIB限制从10到8.5小时,并在7小时进一步下降.
- 通过斯特恩伯格测试测量的工作记忆没有受到TIB限制的显著影响.
结论:
- 限制睡眠时间为7小时会对注意力和灵活性等关键认知功能产生负面影响.
- 睡眠不足对这些认知指标的有害影响在研究年龄段 (10-23岁) 并没有显著差异.
- 虽然与年龄相关的认知改善可能会提供一些补偿,但最佳睡眠时间因认知领域而异.
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