QQ客服 官方微博 反馈留言

	Electrophysiological correlates of adjustment process in anchoring effects
	Qu, Chen1,2; Zhou, Liming1; Luo, Yue-Jia1,3; Yue-jia Luo
刊名	NEUROSCIENCE LETTERS
	2008-11-21
卷号	445期号:3页码:199-203
关键词	Anchoring Accuracy Adjustment Event-related potential
ISSN号	0304-3940
文献子类	Article
英文摘要	Anchoring is a judgmental bias that final judgments are assimilated toward the starting point of the judge's deliberations. The anchoring-and-adjustment heuristic holds that anchoring bias is caused by insufficient adjustment. With the manipulation of some subjective factors, previous research found that anchoring is an effortful process. However, there is little evidence supporting that the effortful process is an adjustment process. In the present work, number accuracy was introduced as an objective factor which involves in an adjustment process. An event-related brain potential (ERP) experiment on young normal subjects examined the impact of number accuracy on anchoring processes responding to anchors which were generated by subjects themselves. A dot-image paradigm was firstly employed to explore anchoring effects. Behavioral results found less accurate anchors which determined a coarser mental scale diminished the anchoring biases responding to self-generated anchors. A positive deflection at 250-800 ms after target onset can be taken as a direct electrophysiological evidence of the adjustment process, whose amplitude was more positive on more accurate anchors condition. The present results further support that people adjust upwards or downwards on a mental scale from the self-generated anchor, which is consistent with the adjustment heuristics.; Anchoring is a judgmental bias that final judgments are assimilated toward the starting point of the judge's deliberations. The anchoring-and-adjustment heuristic holds that anchoring bias is caused by insufficient adjustment. With the manipulation of some subjective factors, previous research found that anchoring is an effortful process. However, there is little evidence supporting that the effortful process is an adjustment process. In the present work, number accuracy was introduced as an objective factor which involves in an adjustment process. An event-related brain potential (ERP) experiment on young normal subjects examined the impact of number accuracy on anchoring processes responding to anchors which were generated by subjects themselves. A dot-image paradigm was firstly employed to explore anchoring effects. Behavioral results found less accurate anchors which determined a coarser mental scale diminished the anchoring biases responding to self-generated anchors. A positive deflection at 250-800 ms after target onset can be taken as a direct electrophysiological evidence of the adjustment process, whose amplitude was more positive on more accurate anchors condition. The present results further support that people adjust upwards or downwards on a mental scale from the self-generated anchor, which is consistent with the adjustment heuristics. (C) 2008 Published by Elsevier Ireland Ltd.
学科主题	认知神经科学
语种	英语
WOS记录号	WOS:000260852900002
公开日期	2011-08-22
内容类型	期刊论文
源URL	[http://ir.psych.ac.cn/handle/311026/5370]
专题	心理研究所_中国科学院心理研究所回溯数据库(1956-2010)
通讯作者	Yue-jia Luo
作者单位	1.Beijing Normal Univ, State Key Lab Cognit Neurosci & Learning, Beijing 100875, Peoples R China 2.S China Normal Univ, Ctr Studies Psychol Applicat, Guanghou, Peoples R China 3.Chinese Acad Sci, Inst Psychol, Key Lab Mental Hlth, Beijing 100864, Peoples R China
推荐引用方式 GB/T 7714	Qu, Chen,Zhou, Liming,Luo, Yue-Jia,et al. Electrophysiological correlates of adjustment process in anchoring effects[J]. NEUROSCIENCE LETTERS,2008,445(3):199-203.
APA	Qu, Chen,Zhou, Liming,Luo, Yue-Jia,&Yue-jia Luo.(2008).Electrophysiological correlates of adjustment process in anchoring effects.NEUROSCIENCE LETTERS,445(3),199-203.
MLA	Qu, Chen,et al."Electrophysiological correlates of adjustment process in anchoring effects".NEUROSCIENCE LETTERS 445.3(2008):199-203.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。