Teen Weekend Sleep: Circadian Timing, Performance, Mood

描述(申请人提供)：这项申请的广泛目标是在周末恢复睡眠行为的背景下检查高中生的昼夜节律和日间功能。学校夜晚和周末夜间睡眠时间的巨大差距与白天功能不佳有关(例如，学习成绩不佳和情绪低落)。这项研究的第一个目的是检查可能有助于这种联系的昼夜节律因素。改变周末的睡眠模式，以保持稳定的昼夜节律，可能会减轻白天的功能衰退。因此，这项研究的第二个目的是测试另一种稳定昼夜节律的周末睡眠时间表。这项拟议的研究采用了受试者内部的平衡设计，两种情况只有以下强制的周末睡眠/醒来时间表不同：通常观察到的晚起时间表和另一种具有稳定夜间睡眠和午睡的时间表。在每个周末前后进行昼夜节律、主观嗜睡、认知能力、情绪和警觉性评估。这项研究可能会进一步了解白天功能不佳的危险因素，并将评估可能缓解青少年这种减少的睡眠行为。

DESCRIPTION (provided by applicant): The broad aim of this application is to examine circadian timing and daytime function in high school students in the context of weekend recovery sleep behavior. Large disparity between school night and weekend night sleep timing is associated with poor daytime function (e.g., poor academic grades and depressed mood). The first aim of this study is to examine circadian factors that may contribute to this association. Modifying sleep patterns on the weekend to maintain stable circadian timing may attenuate daytime function decrements. Thus, the second aim of this study is to test an alternative weekend sleep schedule that stabilizes the circadian system. The proposed study uses a within subjects counterbalanced design with two conditions that differ only by the following enforced weekend sleep/wake schedules: the commonly observed, late rise time schedule and an alternative schedule with stable nocturnal sleep and an afternoon nap. Circadian phase, subjective sleepiness, cognitive throughput, mood, and vigilance assessments precede and follow each weekend condition. This study may further the understanding of risk factors for poor daytime function and will evaluate sleep behaviors that may attenuate these decrements in teens.