外倾个体的自我参照加工程度效应

发布时间：2018-03-21 05:03

  本文选题：外倾　切入点：自我参照加工　出处：《心理学报》2016年08期 　论文类型：期刊论文

【摘要】：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。
[Abstract]:Using event-related potential technique and classical oddball paradigm of three types of stimuli, the effects of self-referential processing on extroverted individuals and their neural mechanisms were investigated in an implicit way. The extroverted subjects' high self-related names were more volatile in each ERP component than other stimuli. On P2, high self-correlation stimuli induced larger P2 amplitude and longer P2 latency than other stimuli. In N _ 2, high self-correlation stimuli induce greater N _ 2 wave amplitude and shorter N _ 2 latency than other stimuli. The position of frontal area was the most effective. The high self-correlation names of the control group induced a larger N _ 2 wave amplitude and a shorter N _ 2 latency than those of the extroverted subjects, and the mean amplitude of P3 was higher than that of the extroverted subjects. The high self-related stimuli induced greater P3 amplitude than other stimuli, in which the midline effect was the largest. The results showed that the self-referential processing of extroverted individuals had a degree effect, but compared with the control group, the control group had higher amplitude of P3. The degree effect of self-referential processing of extroverted individuals is weaker.
【作者单位】： 湖南师范大学认知与人类行为湖南省重点实验室;中国科学院心理研究所脑与认知科学国家重点实验室;
【基金】：国家自然科学基金青年项目(31500883) 中国博士后科学基金面上项目(2014M561086) 教育部人文社会科学研究规划基金项目(13YJA190001) 湖南省自然科学基金面上项目(2015JJ2101,2015JJ2097) 湖南省社会科学基金青年项目(15YBA264) 湖南省教育科学“十二五”规划课题(XJK0150XL002) 湖南省教育厅科学研究优秀青年项目(15B152)
【分类号】：B842
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本文编号：1642370