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目的探索睡眠剥夺对个体情绪图片主观评估的影响。方法选取某高校43名本科生,随机分为睡眠剥夺组(n=23)和正常睡眠组(n=20),因正常睡眠组有2人未参加后测任务,1人前测数据丢失,故正常睡眠组最终纳入被试17人。睡眠剥夺组在前测结束后进行睡眠剥夺(22:00~次日08:00)。正常睡眠组不做干预。从国际情绪图片系统中选取正、中、负性图片共216张(前测108张,后测108张;每类图片36张),通过正负性情绪量表(PANAS)考察两组被试在前后2次测试中主观情绪的变化以及整晚睡眠剥夺对情绪图片主观评估的影响。结果睡眠剥夺对正性和负性情绪图片的评分没有明显影响,但对中性图片的愉悦度评分存在负性偏倚,睡眠剥夺组对中性图片的愉悦度评分前、后测差异有统计学意义(P<0.01),而正常睡眠组前、后测差异无统计学意义(P=0.12);控制协变量主观情绪后,睡眠剥夺造成的对中性图片愉悦度评分上的负性偏倚依然存在;睡眠剥夺组被试对情绪图片的唤醒度评分大于正常睡眠组(P<0.05)。结论睡眠在情绪评估过程中发挥着重要作用,睡眠剥夺可导致个体对中性刺激的评估发生负性偏倚。
Objective To explore the impact of sleep deprivation on the subjective assessment of individual emotion pictures. Methods Forty-three undergraduates in a university were randomly divided into sleep deprivation group (n = 23) and normal sleep group (n = 20). Two of the normal sleep group did not participate in the post-test task, and one of the pre-test data was lost. The normal sleep group eventually included 17 subjects. The sleep deprivation group was deprived of sleep after the previous test (22:00 to 08:00 the next day). Normal sleep group without intervention. A total of 216 positive (positive), negative (negative) images were selected from the International Emotional Picture System (108 pre-test, 108 post-test and 36 per test work). The positive and negative emotion scales (PANAS) Changes in subjective mood during the first two tests and the effects of overnight sleep deprivation on the subjective assessment of emotional images. Results Sleep deprivation had no significant effect on the scores of positive and negative emotion pictures, but there was a negative bias in the pleasure pictures of neutral pictures. There was a statistically significant difference between before and after the sleep deprivation group rated the pleasure of neutral pictures (P <0.01). However, there was no significant difference between before and after the normal sleep group (P = 0.12). After the subjective mood was controlled by sleep deprivation, the negative bias to the pleasure picture of neutral picture was still There was no significant difference between the sleep deprivation group and the normal sleep group (P <0.05). Conclusion Sleep plays an important role in emotional evaluation. Sleep deprivation can lead to negative bias in assessment of neutral stimuli.