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外倾个体的自我参照加工程度效应
The degree of self-reference effect of extroversion individuals

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范伟 1   钟毅平 2   杨子鹿 2   李琎 2   欧阳益 2   蔡荣华 2   李慧云 3   傅小兰 3 *  
文摘 采用事件相关电位技术和三类刺激的经典oddball范式, 以内隐的方式探讨外倾特质个体的自我参照加工程度效应及其神经机制。实验发现, 外倾被试的高自我相关名字在各个ERP成分上都比其他刺激诱发了更大波幅。在P2上, 高自我相关的刺激比其他刺激诱发了更大的P2波幅和更长的P2潜伏期, 其中中线脑区的效应最大。在N2上, 高自我相关的刺激比其他刺激诱发了更大的N2波幅和更短的N2潜伏期, 其中额区位置的效应最大。控制组被试的高自我相关名字比外倾型被试的高自我相关名字诱发了更大的N2的波幅和更短的N2潜伏期。在P3平均波幅上, 高自我相关的刺激比其他刺激诱发了更大的P3波幅, 其中中线效应最大。对比外倾型被试, 控制组被试的自我参照刺激诱发了更大的P3波幅。研究结果表明外倾特质个体的自我参照加工具有程度效应, 但对比控制组被试, 外倾特质个体的自我参照加工的程度效应更弱。
其他语种文摘 The self-reference effect is the enhanced speed and quality of processing and memorization observed with respect to information that is related to the individual's self-concept. According to the preceding research, self-reference effect have the different with degree, and different degree of intimacy with the core self. Then, the brain on the depth of its reference treatment is different, also. Highly self-relevant stimulus will get faster response compared with minimally self stimulate in the brain. This is called the degree of self-reference processing effect. On the basis of summarizing the preceding research, this study uses the event related potential technology, through ERPs experiments investigation the degree of extroversion individuals of self-reference processing effect and neural mechanisms.Experiment adopted three kinds of classic oddball models, using an implicit way to investigate the extroversion individual self-reference processing degree effect. Used three-character non-name lexical phrases served as the standard stimulus, and a three-character non-lexical phrase served as target stimuli. Six categories of stimuli were used in a three-stimulus oddball paradigm. Three sets of self-relevant stimuli, the non-self-relevant stimulus, and two filler stimuli, served as distracters. The name of the participant was used as the highly self-relevant stimulus, the name of participant's father as the moderately self-relevant stimulus, the name of China's leaders the minimally self-relevant stimulus, and the name of the president of the United States, served as the non-self-relevant stimulus. All names are three Chinese characters long. Familiarity was equivalent across all sets of stimulus names. All name stimuli were made into images on a PC using Microsoft Office Picture Manager. Image size, word length, and complexity were matched across the name conditions.Experiment found that on the P2 amplitude, highly self-related stimuli induced greater P2 amplitude than other stimulation. On the latent period of P2, the electrode in the front, central, and parietal position, highly self-related to stimulate induced the short latent period than other stimulation. In N2 amplitude, highly self-related name induced larger N2 amplitude than other stimulus; comparing extroversive subjects, control group subjects of highly self-relevant names induced larger amplitude of N2 than other stimulation. On the latent period of N2, highly self-relevant stimuli in the whole brain induced the short latent period of N2, it is better than other stimulation, and the parietal position of the electrode is the shortest possible; Highly self-relevant name of two types of personality subjects induced shorter latent period of N2 than other stimulation, but control group subjects is the shortest. On average amplitude of P3, highly self-relevant stimuli in whole brain induced the P3 amplitude is bigger than other stimulation. The effect of midline brain regions is largest. Comparing extroversive subjects, control group subjects of highly self-relevant names induced larger amplitude of P3 than other stimulation.Research results show that self-reference processing with the degree of effect is actually existence, highly self-relevant stimuli will get deeper and exquisite processing than moderately and minimally self-relevant stimuli. Comparison control group individuals, introversion subject was weaker in the degree of self-reference processing effect. And in early stage, highly self-relevant stimuli of control group individuals will be faster being noticed than minimally self-related stimuli by the brain. In the late stage of cognitive, highly self-relevant stimuli will get deeper and elaborating processing.
来源 心理学报 ,2016,48(8):1002-1012 【核心库】
DOI 10.3724/SP.J.1041.2016.01002
关键词 外倾 ; 自我参照加工 ; 程度效应 ; ERPs ; N2 ; P3
地址

1. 湖南师范大学, 认知与人类行为湖南省重点实验室;;脑与认知科学国家重点实验室, 长沙, 410082  

2. 湖南师范大学, 认知与人类行为湖南省重点实验室, 长沙, 410082  

3. 中国科学院心理研究所, 脑与认知科学国家重点实验室, 北京, 100101

语种 中文
文献类型 研究性论文
ISSN 0439-755X
学科 社会科学总论
基金 湖南省教育科学"十二五"规划课题 ;  湖南省教育厅科学研究优秀青年项目 ;  国家教育部人文社会科学研究项目 ;  中国博士后科学基金 ;  国家自然科学基金青年项目 ;  湖南省社会科学基金青年项目 ;  湖南省自然科学基金面上项目
文献收藏号 CSCD:5772152

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