Sleep and Neuroimaging Laboratory, Department of Psychology, University of California, Berkeley, CA 94720-1650, USA.
Sleep. 2010 Mar;33(3):335-42. doi: 10.1093/sleep/33.3.335.
Investigate the impact of sleep deprivation on the ability to recognize the intensity of human facial emotions.
Randomized total sleep-deprivation or sleep-rested conditions, involving between-group and within-group repeated measures analysis.
Experimental laboratory study.
Thirty-seven healthy participants, (21 females) aged 18-25 y, were randomly assigned to the sleep control (SC: n = 17) or total sleep deprivation group (TSD: n = 20).
Participants performed an emotional face recognition task, in which they evaluated 3 different affective face categories: Sad, Happy, and Angry, each ranging in a gradient from neutral to increasingly emotional. In the TSD group, the task was performed once under conditions of sleep deprivation, and twice under sleep-rested conditions following different durations of sleep recovery. In the SC group, the task was performed twice under sleep-rested conditions, controlling for repeatability.
In the TSD group, when sleep-deprived, there was a marked and significant blunting in the recognition of Angry and Happy affective expressions in the moderate (but not extreme) emotional intensity range; differences that were most reliable and significant in female participants. No change in the recognition of Sad expressions was observed. These recognition deficits were, however, ameliorated following one night of recovery sleep. No changes in task performance were observed in the SC group.
Sleep deprivation selectively impairs the accurate judgment of human facial emotions, especially threat relevant (Anger) and reward relevant (Happy) categories, an effect observed most significantly in females. Such findings suggest that sleep loss impairs discrete affective neural systems, disrupting the identification of salient affective social cues.
探究睡眠剥夺对识别人类面部情绪强度能力的影响。
随机分组的完全睡眠剥夺或睡眠恢复条件，包括组间和组内重复测量分析。
实验性实验室研究。
37 名健康参与者（21 名女性），年龄 18-25 岁，随机分配至睡眠对照组（SC：n=17）或完全睡眠剥夺组（TSD：n=20）。
参与者进行了情绪面孔识别任务，评估了 3 种不同的情感面孔类别：悲伤、快乐和愤怒，每个类别从中性到越来越情绪化的梯度范围。在 TSD 组中，任务在睡眠剥夺条件下进行一次，在不同的睡眠恢复时间后，在睡眠恢复条件下进行两次。在 SC 组中，任务在睡眠恢复条件下进行两次，以控制重复性。
在 TSD 组中，当睡眠剥夺时，在中等（但不是极端）情绪强度范围内，对愤怒和快乐情绪表达的识别明显且显著减弱；在女性参与者中，差异最可靠且显著。悲伤表情的识别没有变化。然而，经过一夜的恢复性睡眠，这些识别缺陷得到了改善。在 SC 组中，任务表现没有变化。
睡眠剥夺选择性地损害了人类面部情绪的准确判断，尤其是对威胁相关（愤怒）和奖励相关（快乐）的类别，这种影响在女性中最为明显。这些发现表明，睡眠不足会损害离散的情感神经系统，干扰对显著情感社会线索的识别。
