个体对效价预期和风险评估的时程加工机制:来自ERP的证据

被引：3

作者：

王慧

陈飞

刘雷

冯廷勇

机构：

[1] 西南大学心理学院

来源：

心理学探新 | 2012年 / 32卷 / 02期

关键词：

结果预期; 效价预期; 风险评估; N2; N500;

D O I：

暂无

中图分类号：

R446.6 [免疫学检验];

学科分类号：

100208 ;

摘要：

采用事件相关电位技术(ERP),通过简单赌博任务,操纵结果预期的效价(输或赢)与风险(高风险与低风险),考察了个体对结果预期阶段的效价和风险评估的脑内时程动态加工过程。脑电结果发现:(1)在N2成分上,结果预期的效价主效应显著,预期输比预期赢能够引起更大的N2波幅;结果预期的风险主效应不显著。(2)在N500成分上,效价与风险之间的交互作用边缘显著,进一步简单效应分析发现,在预期输的条件下,肯定会输的N500波幅显著大于可能会输;而在预期赢的条件下,肯定会赢与可能会赢之间的N500波幅差异不显著。这说明,在不确定决策过程中的结果预期阶段,个体可能先对结果预期的效价进行加工,然后再对风险进行评估。

引用

页码：139 / 145

页数：7

共 10 条

[1] 简评爱荷华赌博任务 [J].

李秀丽 ;

李红 ;

孙昕怡 .

保健医学研究与实践, 2009, 6 (03) :75-78

[2] Self-relevant criteria determine the evaluation of outcomes induced by others [J].

Itagaki, Shun ;

Katayama, Jun'ichi .

NEUROREPORT, 2008, 19 (03) :383-387

[3] Are we sensitive to valence differences in emotionally negative stimuli? Electrophysiological evidence from an ERP study [J].

Yuan, Jiajin ;

Zhang, Qinglin ;

Chen, Antao ;

Li, Hong ;

Wang, Quanhong ;

Zhuang, Zhongchunxiao ;

Jia, Shiwei .

NEUROPSYCHOLOGIA, 2007, 45 (12) :2764-2771

[4]

When Things Are Better or Worse than Expected: The Medial Frontal Cortex and the Allocation of Processing Resources[J] . Geoffrey F. Potts,Laura E. Martin,Philip Burton,P. Read Montague. Journal of Cognitive Neuroscience . 2006 (7)

[5] Neural differentiation of expected reward and risk in human subcortical structures [J].

Preuschoff, Kerstin ;

Bossaerts, Peter ;

Quartz, Steven R. .

NEURON, 2006, 51 (03) :381-390

[6] Discrepancy between feedback negativity and subjective evaluation in gambling [J].

Toyomaki, A ;

Murohashi, H .

NEUROREPORT, 2005, 16 (16) :1865-1868

[7] Neural activity in the human brain relating to uncertainty and arousal during anticipation [J].

Critchley, HD ;

Mathias, CJ ;

Dolan, RJ .

NEURON, 2001, 29 (02) :537-545

[8]

The effect of temperamental traits on event-related potentials, heart rate and reaction time[J] . Vilfredo De Pascalis,Jan Strelau,Bogdan Zawadzki. Personality and Individual Differences . 1999 (3)

[9]

Decision Making and Problem Solving,Report of Re-search Briefing Panel on Decision Making and Problem Solving .2 Simon,H.A. . 1986

[10]

Independent Coding of Reward Magnitude and Valence in the Human Brain .2 Nick Yeung,Alan G. Sanfey. The Journal of Neuroscience . 2004

← 1 →