睡眠对违反道德的负性情绪记忆的调节  

Regulation of overnight sleep on negative emotion memory with moral-violation

作　　者：张思慧 卞诚 买晓琴[4] 秦绍正[1,2,3] 刘超 Sihui Zhang;Cheng Bian;Xiaoqin Mai;Shaozheng Qin;Chao Liu(State Key Laboratory of Cognitive Science and Learning&IDG/Mc Govern Institute for Brain Research,Beijing Normal University,Beijing 100875,China;Center for Collaboration and Innovation in Brain and Learning Sciences,Beijing Normal University,Beijing 100875,China;Beijing Key Laboratory of Brain Imaging and Connectomics,Beijing Normal University,Beijing 100875,China;Department of Psychology,Renmin University of China,Beijing 100872,China)

机构地区：[1]北京师范大学认知神经科学与学习国家重点实验室IDG/麦戈文脑研究院,北京100875 [2]北京师范大学脑与学习协同创新中心,北京100875 [3]北京师范大学神经影像大数据与人脑连接组学北京市重点实验室,北京100875 [4]中国人民大学心理学系,北京100872

出　　处：《科学通报》2021年第13期1642-1652,共11页Chinese Science Bulletin

基　　金：国家重点研发计划(2017YFC0803402);国家自然科学基金(31871094,31522028,81571056);国家社科基金重大项目(19ZDA363)资助。

摘　　要：记忆是信息加工的基础,违反道德事件作为记忆的重要内容,往往诱发了个体较强的负性情绪.负面情绪记忆的加工是影响个人心理健康的重要因素,创伤后应激障碍人群表现出对记忆主动操纵的失衡,长期处于负性情绪之中会导致身心健康受到极大的影响.但目前违反道德的负性情绪记忆进行主动操纵的具体表现仍不为人所知.本研究基于记忆线索操纵范式,在负性情绪基础上纳入违反道德维度,探究个体对违反道德和一般的负性情绪记忆进行主动操纵的表现差异.另一方面,睡眠巩固后的负性情绪记忆存在区别于新获得记忆的抑制机制,研究进一步考察睡眠对不同负性情绪记忆效果的影响.结果发现:(1)人们更愿意主动抑制新获取的违反道德的负性情绪记忆,而对一般负性情绪记忆则更容易去提取.(2)经历睡眠后,一般负性情绪记忆的提取效应和违反道德的负性情绪的抑制效应均被削弱.实验结果表明了违反道德和一般负性情绪记忆在巩固与抑制的主动操纵效应上所存在的差异,以及睡眠对两种负性情绪记忆操纵效应差异的调节作用,增进了我们对于道德情绪记忆经睡眠后储存、提取和抑制表现的认识.The processing of negative emotion memory is a key factor influencing human mental health and the ability to manipulate negative emotion memory is crucial for mental health.It is beneficial for individuals to be highly motivated to successfully forget an unpleasant experience.However,people with post-traumatic stress disorder(PTSD)often show an imbalance in voluntary memory manipulation.They are unable to regulate memories of emotions and are exposed to negative emotions for a longer time,which over time will lead to greater damage to both physical and mental health.Witnessing moral violation may induce negative emotions in real life,but it is still unknown if when faced with memories of negative emotions associated with moral violation content,whether the process of suppression and recall manipulation would be different for non-moral content.A previous study found that overnight sleep could weaken the effect of suppression on memory.In the present study,we first selected 120 pictures and recruited participants to rate their emotional arousal,valence,and morality on a 9-point scale in an online survey.After selecting and matching negative emotional stimuli with similar emotional arousal and valence and distinguishable morality(non-moral vs.moral-violation)in the online ratings,28 participants were required to remember the stimuli paired with the cue objects after two days’training(overnight sleep vs.newly acquired condition)and then they had a think/no-think task(TNT)(recall vs.suppression vs.baseline)to intuitively suppress and recall these pairs.After the TNT task,a recall test was conducted to record vocal memory performance,which was scored by three scorers.The scorer reliability was measured,and showed high quality.We determined the recall score by computing the difference between recall accuracy and baseline accuracy,and found the suppression score to be the difference between suppression accuracy and baseline accuracy.Then a 2×2×2 repeated measures ANOVA with withinsubject factors of training time,cue

关 键 词：睡眠 道德 负性情绪 记忆抑制 记忆提取 

分 类 号：B842.6[哲学宗教—基础心理学]