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缩短的夜间睡眠时间会损害面部对情绪刺激的反应能力。

Shortened night sleep impairs facial responsiveness to emotional stimuli.

机构信息

Stress Research Institute, Stockholm University, Sweden.

出版信息

Biol Psychol. 2013 Apr;93(1):41-4. doi: 10.1016/j.biopsycho.2013.01.008. Epub 2013 Jan 26.

Abstract

Sleep deprivation deteriorates mood, impairs the recognition of facial expressions, and affects the ability to regulate emotions. The present study investigated the effect of partial sleep deprivation on facial responses to emotional stimuli. Thirty-three healthy undergraduates were tested twice: after a night with (i) 8h and (ii) 4h sleep. Self-reported sleepiness and sustained attention (Psychomotor Vigilance Task) were assessed. Emotional reactivity was measured with facial Electromyogram (EMG) while participants were asked to respond with either compatible or incompatible facial muscles to emotional stimuli in order to study whether partial sleep deprivation caused slower reactions mainly in response to incompatible stimuli (due to an additional effort to suppress the compatible reaction caused by decreased inhibitory control) or in response to both compatible and incompatible stimuli. Self-reported sleepiness and reaction times in a sustained attention task significantly increased after one night of partial sleep deprivation. Facial reactions to emotional stimuli were decelerated. No significant interaction between sleep restriction and compatibility of the muscle to the picture valence could be observed. Hence, volitional facial reactions in response to emotional stimuli were slower after one night of reduced sleep, but affective inhibitory control was not significantly impaired. However, slowed facial responding to emotional stimuli may affect social interaction after sleep restriction.

摘要

睡眠剥夺会恶化情绪,损害对面部表情的识别能力,并影响情绪调节能力。本研究调查了部分睡眠剥夺对面部对情绪刺激反应的影响。33 名健康的大学生被测试了两次:一次是在(i)8 小时和(ii)4 小时睡眠后。自我报告的困倦和持续注意力(精神运动警觉任务)进行了评估。在参与者被要求用表情肌做出相容或不相容的反应来回应情绪刺激时,测量了情绪反应的面部肌电图(EMG),以研究部分睡眠剥夺是否会导致反应速度变慢,主要是对不相容的刺激(由于抑制控制降低导致相容反应的额外抑制)还是对相容和不相容的刺激都变慢。一夜部分睡眠剥夺后,自我报告的困倦和持续注意力任务的反应时间显著增加。对情绪刺激的面部反应减慢。睡眠限制与肌肉与图片效价的兼容性之间没有观察到显著的相互作用。因此,一夜睡眠减少后,对情绪刺激的自主面部反应会变慢,但情感抑制控制并没有明显受损。然而,情绪刺激后面部反应的减慢可能会影响睡眠限制后的社交互动。

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