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中国生物医学工程学报  2021, Vol. 40 Issue (1): 44-52    DOI: 10.3969/j.issn.0258-8021.2021.01.05
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恐惧和悲伤情绪认知重评过程中的脑电活动差异
魏玲1, 李颖洁2,3*, 姚旭峰1*
1(上海健康医学院医学影像学院,上海 201318)
2(上海大学上海先进通信与数据科学研究院,上海 200444)
3(上海大学通信与信息工程学院,上海 200444)
The Different EEG Activity During Cognitive Reappraisal Task for Fearful and Sad Stimuli
Wei Ling1, Li Yingjie2,3*, Yao Xufeng1*
1(College of Medical Imaging, Shanghai University of Medicine & Healthy Sciences, Shanghai 201318, China)
2(Shanghai Institute for Advanced Communication and Data Science, Shanghai University, Shanghai 200444, China)
3(School of Communication and Information Engineering, Shanghai University, Shanghai 200444, China)
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摘要 恐惧和悲伤情绪的调节具有不同的神经基础,通过分析这两种情绪调节过程中事件相关电位的差异,探索其电生理机制。采集21名正常受试者对恐惧和悲伤情景图片进行自然注视和认知重评任务时的头皮脑电信号,选取4个感兴趣区域(左额中央区、右额中央区、左顶中央区、右顶中央区),分析刺激后500~5 000 ms时间范围内(500 ms为一个时间窗,共9个时间窗)两种情绪刺激诱发得到的事件相关电位晚成分(LPP)的幅值差异。统计分析采用重复测量方差分析方法,组内因素为时间(9个水平)、区域(4个水平)、任务条件(2个水平:自然注视和认知重评)以及情绪(2个水平:恐惧和悲伤)。结果发现,在刺激后500~1 000 ms,在右顶中央区,恐惧刺激诱发的LPP显著高于悲伤刺激诱发的LPP(P<0.05), 自然注视时为(8.815±1.153)μV vs(5.834±1.317)μV,认知重评时为(7.094±1.036)μV vs(6.643±1.158)μV。在刺激后1 500~2 500 ms各时间窗,悲伤刺激的认知重评显著增强额中央区活动(P<0.05), 其中刺激后1 500~2 000 ms的结果为(10.100±2.205)μV vs(2.515±1.676)μV;刺激后2 500~4 000 ms各时间窗,任务条件具有主效应,恐惧和悲伤刺激的调节都能显著提高左侧额中央的LPP幅值(P<0.05), 其中刺激后2 500~3 000 ms的结果恐惧为(2.957±1.767)μV vs(1.899±2.969)μV , 悲伤为(7.957±2.305)μV vs(-0.051±2.018)μV。结果表明,恐惧和悲伤刺激的调节具有不同的时间过程,且左侧额中央区域在情绪调节过程中具有重要作用。
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魏玲
李颖洁
姚旭峰
关键词 事件相关电位情绪调节认知重评恐惧悲伤    
Abstract:The processing of fear and sadness have different neural bases. The purpose of this study is to explore the electrophysiological mechanism by analyzing the features of event-related potentials in the process of emotion regulation for fearful and sad stimuli. Electroencephalography (EEG) signals were recorded in 21 healthy subjects during the watch and cognitive reappraisal tasks for fear and sadness stimuli. Late positive potential (LPP) of four brain regions (left fronto-central, right fronto-central, left centro-parietal, right centro-parietal) within the time range of 500~5 000 ms (9 windowsof 500 ms in length) after stimulation were selected to analyze the difference of fear and sadness emotion regulation. Repeated measures analysis of variance was used for statistical analysis. The within-group factors were time (9 levels), area (4 levels), task condition (2 levels, watch and regulate) and emotion (2 levels, fear and sadness). The experimental results showed that fearful stimuli evoked significantly larger LPP in right centro-parietal region than sad stimuli in the window 500~1 000 ms (P<0.05, (8.815±1.153) μV vs (5.834±1.317) μV for watch, (7.094±1.036) μV vs (6.643±1.158) μV for regulate. And the regulation of sadness significantly increased the LPP in left and right frontal-central regions in 1 500~2 500 ms after the stimulation (P<0.05, among them (10.100±2.205) μV vs (2.515±1.676) μV in the window1 500~2 000 ms). In 2 500~4 000 ms, the regulation of sadness and fear both significantly enhanced the LPP in left frontal-central (P<0.05, among them in the window 2 500~3 000 ms, (2.957±1.767) μV vs (1.899±2.969) μV for fear, (7.957±2.305) μV vs (-0.051±2.018)μV for sadness). These findings pointed out the different time course of fear and sadness emotion regulation and an important role of the left fronto-central region in down-regulation of negative emotion.
Key wordsevent-related potential(ERP)    emotion regulation    cognitive reappraisal    fear    sadness
收稿日期: 2019-11-10     
PACS:  R318  
基金资助:国家自然科学基金(61571283, 61971275);上海健康医学院种子基金(SFP-18-22-06-001);上海健康医学院百人库人才项目(B1-0200-19-311109)
通讯作者: *E-mail: liyj@i.shu.edu.cn; yaoxf@sumhs.edu.cn   
引用本文:   
魏玲, 李颖洁, 姚旭峰. 恐惧和悲伤情绪认知重评过程中的脑电活动差异[J]. 中国生物医学工程学报, 2021, 40(1): 44-52.
Wei Ling, Li Yingjie, Yao Xufeng. The Different EEG Activity During Cognitive Reappraisal Task for Fearful and Sad Stimuli. Chinese Journal of Biomedical Engineering, 2021, 40(1): 44-52.
链接本文:  
http://cjbme.csbme.org/CN/10.3969/j.issn.0258-8021.2021.01.05     或     http://cjbme.csbme.org/CN/Y2021/V40/I1/44
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