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 内隐多效性选择的ERP证据(PDF)

《心理学探新》[ISSN:1003-5184/CN:36-1228/B]

期数:
 2018年02期
页码:
 142-147
栏目:
 认知心理学
出版日期:
 2018-03-15

文章信息/Info

Title:
 Multifinality in Implicit Choice:Evidence of ERPs
文章编号:
1003-5184(2018)02-0142-06
作者:
 蔡荣华1钟毅平1范 伟12张文洁1
 1.湖南师范大学认知与人类行为湖南省重点实验室,长沙 410082; 2.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
Author(s):
 Cai Ronghua1Zhong Yiping1Fan Wei12Zhang Wenjie1
 1.Cognition and Human Behavior Key Laboratory of Hunan Province,Hunan Normal University,Changsha 410082; 2.State Key Laboratory of Brain and Cognitive Science,Institute of Psychology,Chinese Academy of Sciences,Beijing 100101
关键词:
 事件相关电位 内隐 多效性选择 N2 P3
Keywords:
 Key words:event-related potential implicit multifinality choice N2 P3
分类号:
 B842.5
DOI:
 -
文献标识码:
 A
摘要:
 采用事件相关电位技术,考察内隐多效性选择及其神经机制。被试的任务是认真观看配对的纯色图片刺激,并进行分类按键反应。实验结果发现,在P2上,积极启动刺激比对照刺激激发了更大的P2波幅; 对比对照刺激,积极启动刺激在左脑、大脑中部和后脑诱发了更大的P2波幅,其中右脑的效应最大。在N2上,积极启动刺激比对照刺激激发了更小的N2波幅; 对比对照刺激,积极启动刺激在左脑、大脑中部和后脑诱发了更小的N2波幅,其中右脑的效应最大。在P3上,积极启动刺激比对照刺激激发了更大的P3波幅; 对比对照刺激,积极启动刺激在左脑、大脑中部和后脑诱发了更大的P3波幅,其中右脑的效应最大。研究结果表明当外显目标与内隐目标同时被呈现时,被试趋向于做多效性选择,这可能表明无意识信息加工具有相当大的权重。且右后部脑区可能是加工多效性刺激的核心和关键区域,P3成分可能反应了内隐多效性选择的精细加工过程,能够作为内隐多效性选择的有效的ERPs指标。
Abstract:
 Abstract:In present study,we adopted event-related potential technique to investigate the implicit multifinality choice and its neuromechanism.The task of participants is to obesrve the matched pure color picture stimuli,and classify by pressing buttons.The result revealed that the amplitude of P2 elicited by positive priming stimuli was larger than the control stimuli.Compared with the control stimuli,the positive priming stimuli elicited larger amplitudes of P2 in left-brain,central and posterior of brain.And the effect was significant in right brain.Moreover,the amplitude of N2 elicited by positive priming stimuli was smaller than the control stimuli.Compared with the control stimuli,the positive priming stimuli elicited smaller amplitudes of N2 in left-brain,central and posterior of brain.And the effect was significant in right brain.Finally,the amplitude of P3 elicited by positive priming stimuli was larger than the control stimuli.Compared with the control stimuli,the positive priming stimuli elicited smaller amplitudes of P3 in left-brain,central and posterior of brain.And the effect was significant in right brain.The findings suggested that when implicit and explicit goals were presented contemporarily,the participants tended to make the multifinality choice.It might suggest that unconscious information processing has a relatively large weight.The right posterior brain regions probably are the core and key areas of processing the multifinality stimuli.P3 components might reflect the fine finishing process of implicit multifinality choice,and it can be an effective ERPs index of implicit multifinality choice.

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备注/Memo

备注/Memo:
 基金项目:国家自然科学基金青年项目(31671134,31500883),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)。 通讯作者:钟毅平,E-mail:ypzhong@163.com。
更新日期/Last Update:  2018-03-15