Boon Merel Elise, Esfahani Mahdad Jafarzadeh, Vink Jacqueline M, Geurts Sabine A E, van Hooff Madelon L M
Behavioral Science Institute, Radboud University, Nijmegen, The Netherlands.
Donders Institute for Brain, Behaviour and Cognition, Radboud University Medical Center, Nijmegen, The Netherlands.
J Sleep Res. 2025 Feb;34(1):e14258. doi: 10.1111/jsr.14258. Epub 2024 Jun 6.
Self-report studies show that sleep and positive and negative affect are closely and bidirectionally linked. However, studies assessing sleep objectively yield more inconsistent results. This study assessed the reciprocal, daily relationship between sleep as measured with electroencephalography (EEG) and affect (measured in the evening) in a natural setting. We assessed sleep both on the macrolevel (i.e., rapid eye movement [REM] sleep and slow-wave sleep [SWS] duration) and on the microlevel (i.e., REM sleep fragmentation). In this study, 33 participants (i.e., healthy college students, mean [standard deviation] age 21.55 [3.73] years, 67% female) were followed for 2 weeks. Each participant wore an EEG headband for 15 nights and had polysomnography during 3 of the 15 nights providing 72 analysable nights of polysomnography and 271 analysable nights with the EEG headband. Every evening participants reported their momentary negative and positive affect. We examined the relationship between pre-sleep affect and the sleep variables, as well as the reverse relationship, with sleep variables predicting evening affect the next day. We detected that higher negative affect in the evening was related to more fragmented REM sleep. However, this result was only found with polysomnography and not with the EEG headband. No significant associations were found between affect and time spent in REM sleep and SWS. Overall, no support was found for the reciprocal association between negative and positive affect and EEG measured sleep. Only limited support was found for an association in one direction (i.e., evening negative affect was associated with more REM sleep fragmentation at night).
自我报告研究表明，睡眠与积极和消极情绪密切相关且存在双向联系。然而，客观评估睡眠的研究结果则更为不一致。本研究在自然环境中评估了通过脑电图（EEG）测量的睡眠与情绪（在晚上测量）之间的每日相互关系。我们从宏观层面（即快速眼动[REM]睡眠和慢波睡眠[SWS]时长）和微观层面（即REM睡眠片段化）评估睡眠。在本研究中，33名参与者（即健康大学生，平均[标准差]年龄21.55 [3.73]岁，67%为女性）被跟踪了2周。每位参与者佩戴EEG头带15个晚上，并在15个晚上中的3个晚上进行多导睡眠监测，从而提供72个可分析的多导睡眠监测夜晚以及271个使用EEG头带的可分析夜晚。每天晚上，参与者报告他们当下的消极和积极情绪。我们研究了睡前情绪与睡眠变量之间的关系，以及相反的关系，即睡眠变量预测第二天晚上的情绪。我们发现晚上较高的消极情绪与更多的REM睡眠片段化有关。然而，这一结果仅在多导睡眠监测中发现，而在EEG头带监测中未发现。在情绪与REM睡眠和SWS的时长之间未发现显著关联。总体而言，未发现消极和积极情绪与EEG测量的睡眠之间存在相互关联的证据。仅在一个方向上发现了有限的关联证据（即晚上的消极情绪与夜间更多的REM睡眠片段化有关）。
