The present study primarily aimed to investigate the interactive effect of chronotype and time of day on adolescent’s emotional states. Chronotype influences behaviour throughout the day, with variables such as mood exhibiting circadian rhythmicity. We also considered the influence of potential covariates, such as sleep variables and psychopathological symptoms. A total of 190 8^th-grade students (53.7% males; mean age 13.47 ±.70) completed a two-part protocol: part one probing sleep (BaSIQS), chronotype (CSM), and psychopathological symptoms (SDQ); part two targeting emotional states (FS; STAIC-S; EAPNC), while manipulating the time of day (first and last hours of the school day). The hypothesized interaction failed to reach significance, despite correlational analyses and visual inspection of mean values suggesting some interactive effects. Time of day independently impacted positive emotional states, rising from morning to afternoon, and anxiety-state, which dropped. Chronotype independently influenced momentary mood (non-significant when sleep and psychopathological symptoms were controlled for), positive affect (non-significant when controlling for psychopathological symptoms), and anxiety (non-significant when sleep quality and psychopathological symptoms were controlled for). There were consistent effects of time of day, but its interaction with chronotype did not reach significance. Some associations between chronotype and emotional states seemed to be influenced by sleep and/or psychopathological symptoms.

本研究主要旨在调查表型和一天中的时间对青少年情绪状态的交互作用。计时型会影响一天中的行为，例如情绪会表现出昼夜节律。我们还考虑了潜在协变量的影响，例如睡眠变量和心理病理症状。总共190 8的^第年级学生（男性53.7％；平均年龄13.47±.70）完成了一个分为两部分的协议：第一部分是探查睡眠（BaSIQS），表型（CSM）和精神病理症状（SDQ）；第二部分以情绪状态（FS，STAIC-S，EAPNC）为目标，同时调整一天中的时间（上学日的第一时间和最后一小时）。尽管进行了相关分析和均值的目测表明存在某些相互作用，但假设的相互作用仍未达到显着水平。一天中的时间独立影响积极的情绪状态，从早上到下午都有上升，而焦虑状态则有所下降。时间型独立影响瞬时情绪（控制睡眠和心理病理症状时无显着性），积极影响（控制心理病理症状时无显着性），和焦虑（控制睡眠质量和心理病理症状时无统计学意义）。一天中的时间有一致的影响，但它与表型的相互作用并未达到显着性。表型和情绪状态之间的某些关联似乎受到睡眠和/或心理病理症状的影响。