Department of Psychology, University of Pennsylvania, Philadelphia, PA 19104-6241, USA.
Emotion. 2012 Oct;12(5):1015-20. doi: 10.1037/a0026871. Epub 2012 Feb 6.
Stress often co-occurs with inadequate sleep duration, and both are believed to impact mood and emotion. It is not yet known whether inadequate sleep simply increases the intensity of subsequent stress responses or interacts with stressors in more complicated ways. To address this issue, we investigated the effects of one night of total sleep deprivation on subjective stress and mood in response to low-stress and high-stress cognitive testing conditions in healthy adult volunteers in two separate experiments (total N = 53). Sleep was manipulated in a controlled, laboratory setting and stressor intensity was manipulated by changing difficulty of cognitive tasks, time pressure, and feedback about performance. Sleep-deprived participants reported greater subjective stress, anxiety, and anger than rested controls following exposure to the low-stressor condition, but not in response to the high-stressor condition, which elevated negative mood and stress about equally for both sleep conditions. These results suggest that sleep deprivation lowers the psychological threshold for the perception of stress from cognitive demands but does not selectively increase the magnitude of negative affect in response to high-stress performance demands.
压力通常与睡眠不足同时发生，人们认为两者都会影响情绪和情感。目前还不清楚睡眠不足是否仅仅增加了随后的压力反应的强度，或者是否以更复杂的方式与压力源相互作用。为了解决这个问题，我们在两个独立的实验中（总 N = 53），在健康成年志愿者中，调查了一夜完全睡眠剥夺对低压力和高压力认知测试条件下主观压力和情绪的影响。在受控的实验室环境中操纵睡眠，通过改变认知任务的难度、时间压力和对表现的反馈来操纵应激源强度。与休息对照组相比，睡眠剥夺组在暴露于低压力条件后报告的主观压力、焦虑和愤怒程度更高，而在高压力条件下则没有，因为高压力条件对两种睡眠条件的负面情绪和对压力的担忧都同样升高。这些结果表明，睡眠剥夺降低了对认知需求引起的压力的心理阈值，但不会选择性地增加对高压力表现需求的负面情绪的幅度。
