Please wait a minute...
心理学报
  论文 本期目录 | 过刊浏览 | 高级检索 |
认知分心的强度对创伤性信息加工的影响
窦伟伟;郑希付;杨慧芳;王俊芳;李悦;俄小天;陈倩倩
(1华南师范大学心理应用研究中心, 广州 510631) (2东莞市光正实验学校, 东莞 523378) (3湛江师范学院教育科学学院, 湛江 524048)
The Effect of Cognitive Distraction’s Intensity on the Process of Trauma-related Information: Evidence from ERP
DOU Weiwei;ZHENG Xifu;YANG Huifang;WANG Junfang;LI Yue;E Xiaotian;Chen Qianqian
(1 Center for Studies of Psychological Application, South China Normal University, Guangzhou 510631, China) (2 Guangzheng Preparatory School, Dongguan 523378, China) (3 Zhanjiang Normal University, Zhanjiang 524048, China)
全文: PDF(532 KB)   评审附件 (1 KB) 
输出: BibTeX | EndNote (RIS)      
摘要 

结合ERP技术、创伤电影范式和改进的工作记忆范式探讨了认知分心的强度对创伤性信息加工的影响。结果发现, (1)高负荷上的N2波幅显著大于低负荷上的。(2)在低工作记忆负荷上, 创伤负性图引发的LPP波幅显著大于创伤中性图和无关中性图; 而在高工作记忆负荷上, 三类图片引发的LPP波之间差异不再显著。(3)在创伤负性图上高、低负荷工作记忆任务诱发的LPP波差异显著, 且高负荷条件下的LPP波幅显著小于低负荷条件。结果表明, 相比低认知控制, 早期高认知控制对创伤性信息的调节更有效, 支持了认知控制理论。

服务
把本文推荐给朋友
加入引用管理器
E-mail Alert
RSS
作者相关文章
窦伟伟
郑希付
杨慧芳
王俊芳
李悦
俄小天
陈倩倩
关键词 认知分心LPP背外侧前额叶皮层(DLPFC)N2认知控制    
Abstract

The visual-spatial resource competition theory suggests that the frequency of flashback could be reduced, when a visual task competes with trauma-related negative pictures for the limited space resources. However, the cognitive control theory hold the view that the central executive control system, as the core of the working memory system, compete with trauma-related negative images for the cognitive control ability. And this ability can be reflected by intense cognitive distraction tasks, indexed by N2 and the late positive potential (LPP) at the neural level. However, it is unclear how the intensity of cognitive distraction modulates the neural processing of the trauma-related information. The present event-related potentials (ERP) study used the traumatic film paradigm and improved working memory paradigm to investigate the effect of cognitive distraction’s intensity on the process of trauma-related information. Two parts consisted of the experiment: watching the traumatic film and completing working memory task. Before and after watching the traumatic film, 22 Participants completed PANAS, but the STAI scale was used only before the film. During the working memory task, participants were told to perform a task which requiring to memorize letters at the beginning. Each trial began with a two- or six-letter string presented on a black background for 5, 000 ms. Next, a white fixation cross appeared for 500~1, 000 ms, followed by a trauma-related picture or a unrelated neutral picture in random order for 2,000 ms. Then, the words ‘what were the letters?’ were presented on the screen. In the following, participants pressed the key of ‘Enter’ and typed the letters in the black empty screen in the order they had memorized them. Participants could use the backspace key to correct mistakes. The trial ended when participants pressed the enter key again when they finished typing letters. The trial interval varied randomly from 2,000 to 2,500 ms, during which a white fixation cross was presented on a black background. The EEG was recorded while the picture appeared. Participants then completed PANAS again after the working memory task. The results showed that: (1) the amplitudes of N2 to the high-load task were significantly larger than those of low-load task; (2) the amplitudes of LPP for trauma-related negative pictures were larger than trauma-related neutral and unrelated neutral pictures in the low-load task, whereas there were no significant differences among the three kinds of pictures in the high-load task; (3) for the trauma-related negative pictures, LPP activity was significantly greater to the high-load task than the low-load task. The results of the present study indicated that the cognitive distraction of the high-load task had a stronger modulation to trauma-related information. This provided support for the cognitive control theory.

Key wordscognitive distraction    Late positive potential (LPP)    DLPFC    N2    cognitive control
收稿日期: 2012-12-26      出版日期: 2014-05-24
基金资助:

国家自然科学基金项目(31371057)、“幸福广州心理服务与辅导基地”项目资助。

通讯作者: 郑希付   
引用本文:   
窦伟伟;郑希付;杨慧芳;王俊芳;李悦;俄小天;陈倩倩. 认知分心的强度对创伤性信息加工的影响[J]. 心理学报, 10.3724/SP.J.1041.2014.00656.
DOU Weiwei;ZHENG Xifu;YANG Huifang;WANG Junfang;LI Yue;E Xiaotian;Chen Qianqian. The Effect of Cognitive Distraction’s Intensity on the Process of Trauma-related Information: Evidence from ERP. Acta Psychologica Sinica, 2014, 46(5): 656-665.
链接本文:  
http://journal.psych.ac.cn/xlxb/CN/10.3724/SP.J.1041.2014.00656      或      http://journal.psych.ac.cn/xlxb/CN/Y2014/V46/I5/656
[1] 程家萍;罗跃嘉;崔芳. 认知负荷对疼痛共情的影响:来自ERP研究的证据[J]. 心理学报, 2017, 49(5): 622-630.
[2] 胡岑楼;张豹;黄赛. 无关长时记忆表征能否引导视觉注意选择?[J]. 心理学报, 2017, 49(5): 590-601.
[3] 张豹;胡岑楼;黄赛. 认知控制在工作记忆表征引导注意中的作用:来自眼动的证据[J]. 心理学报, 2016, 48(9): 1105-1118.
[4] 范伟;钟毅平;杨子鹿;李琎;欧阳益; 蔡荣华; 李慧云 ;傅小兰 . 外倾个体的自我参照加工程度效应[J]. 心理学报, 2016, 48(8): 1002-1012.
[5] 刘聪;焦鲁;孙逊;王瑞明. 语言转换对非熟练双语者不同认知控制成分的即时影响[J]. 心理学报, 2016, 48(5): 472-481.
[6] 钟毅平;李琎;占友龙;范伟;杨子鹿. 自我旋转面孔识别的ERPs研究[J]. 心理学报, 2016, 48(11): 1379-1389.
[7] 王佳莹; 缴润凯; 张明. 任务设置影响负相容效应的机制 ——自上而下认知控制对阈下启动信息加工的影响[J]. 心理学报, 2016, 48(11): 1370-1378.
[8] 胡艳梅;张明. 基于记忆的注意捕获和注意抑制效应:ERP证据[J]. 心理学报, 2016, 48(1): 12-21.
[9] 刘晓瑜;何朝丹;陈俊;邓沁丽. 熟练粤-普双言者的双言认知控制机制 ——来自双任务切换范式的行为研究证据[J]. 心理学报, 2015, 47(4): 439-454.
[10] 徐雷;王丽君;赵远方;谭金凤;陈安涛. 阈下奖励调节认知控制的权衡[J]. 心理学报, 2014, 46(4): 459-466.
[11] 钟毅平;范伟;蔡荣华;谭千保;肖丽辉;占友龙;罗西;秦敏辉. 正性情绪诱导下的自我参照加工:来自ERPs的证据[J]. 心理学报, 2014, 46(3): 341-352 .
[12] 刘欢欢;范宁;沈翔鹰;纪江叶. 认知灵活性对非熟练双语者语言转换的影响 —— 一项ERPs研究[J]. 心理学报, 2013, 45(6): 636-648.
[13] 王振宏;刘亚;蒋长好. 不同趋近动机强度积极情绪对认知控制的影响[J]. 心理学报, 2013, 45(5): 546-555.
[14] 于丽霞;凌霄;江光荣. 自伤青少年的冲动性[J]. 心理学报, 2013, 45(3): 320-335.
[15] 彭家欣;杨奇伟;罗跃嘉. 不同特质焦虑水平的选择性注意偏向[J]. 心理学报, 2013, 45(10): 1085-1093.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
版权所有 © 《心理学报》编辑部
本系统由北京玛格泰克科技发展有限公司设计开发  技术支持:support@magtech.com.cn