Zhai Diguo, Chen Qingwei, Yao Ying, Ru Taotao, Zhou Guofu
Guangdong Provincial Key Laboratory of Optical Information Materials and Technology, Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, 510006, People's Republic of China.
National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou, 510006, People's Republic of China.
Nat Sci Sleep. 2024 Mar 29;16:335-344. doi: 10.2147/NSS.S442007. eCollection 2024.
To explore whether sleep electroencephalogram (EEG) microarousals of different standard durations predict daytime mood and attention performance in healthy individuals after mild sleep restriction.
Sixteen (nine female) healthy college students were recruited to examine the correlations between nocturnal EEG microarousals of different standard durations (≥3 s, ≥5 s, ≥7 s, ≥9 s) under mild sleep restriction (1.5 h) and the following morning's subjective alertness, mood, sustained attention, and selective attention task performance.
Results revealed that mild sleep restriction significantly reduced subjective alertness and positive mood, while having no significant effect on negative mood, sustained attention and selective attention performance. The number of microarousals (≥5 s) was negatively associated with positive mood at 6:30. The number of microarousals was significantly and positively correlated with the response time difference value of disengagement component of the selective attention task at around 7:30 (≥5 s and ≥7 s) and 9:00 (≥5 s). The number of microarousals (≥7 s) was significantly and positively correlated with the inaccuracy difference value of orientation component of the selective attention task at around 9:00.
The number of EEG microarousals during sleep in healthy adults with mild sleep restriction was significantly and negatively related to their daytime positive affect while positively associated with the deterioration of disengagement and orientation of selective attention performance, but this link is dependent on the standard duration of microarousals, test time and the type of task.
探讨不同标准时长的睡眠脑电图（EEG）微觉醒是否能预测轻度睡眠限制后健康个体的日间情绪和注意力表现。
招募了16名（9名女性）健康大学生，以研究在轻度睡眠限制（1.5小时）下不同标准时长（≥3秒、≥5秒、≥7秒、≥9秒）的夜间EEG微觉醒与次日早晨的主观警觉性、情绪、持续注意力和选择性注意力任务表现之间的相关性。
结果显示，轻度睡眠限制显著降低了主观警觉性和积极情绪，而对消极情绪、持续注意力和选择性注意力表现没有显著影响。微觉醒次数（≥5秒）与6:30时的积极情绪呈负相关。微觉醒次数与7:30左右（≥5秒和≥7秒）和9:00（≥5秒）时选择性注意力任务脱离成分的反应时间差值显著正相关。微觉醒次数（≥7秒）与9:00左右选择性注意力任务定向成分的错误差值显著正相关。
轻度睡眠限制的健康成年人睡眠期间的EEG微觉醒次数与他们白天的积极情绪显著负相关，与选择性注意力表现的脱离和定向能力下降正相关，但这种联系取决于微觉醒的标准时长、测试时间和任务类型。
