Counting in everyday life: Discrimination and enumeration
Nan, Yun; Knoesche, Thomas R.; Luo, Yue-Jia; Y. J. Luo
2006
发表期刊NEUROPSYCHOLOGIA
ISSN0028-3932
文章类型Article
卷号44期号:7页码:1103-1113
摘要Enumerating the number of items in a set accurately and quickly is a basic mathematical skill. This ability is especially crucial in the more real-life situations, where relevant items have to be discriminated from irrelevant distracters. Although much work has been done on the brain mechanisms and neural correlates of the enumeration and/or discrimination process, no agreement has been reached yet. We used event-related potentials (ERPs) to show the time course of brain activity elicited by a task that involved both enumeration and discrimination at the same time. We found that even though the two processes run to some extent in parallel, discrimination seems to take place mainly in an earlier time window (from 100 ms after the stimulus onset) than enumeration (beyond 200 ms after the stimulus onset). Moreover, electrophysiological evidence based on the N2 and P3 components make it reasonable to argue for the existence of a dichotomy between subitizing (for sets of less than four items) and counting (for sets of four and more items). Source estimation suggests that subitizing and counting, though being distinct brain processes, do recruit similar brain areas.; Enumerating the number of items in a set accurately and quickly is a basic mathematical skill. This ability is especially crucial in the more real-life situations, where relevant items have to be discriminated from irrelevant distracters. Although much work has been done on the brain mechanisms and neural correlates of the enumeration and/or discrimination process, no agreement has been reached yet. We used event-related potentials (ERPs) to show the time course of brain activity elicited by a task that involved both enumeration and discrimination at the same time. We found that even though the two processes run to some extent in parallel, discrimination seems to take place mainly in an earlier time window (from 100 ms after the stimulus onset) than enumeration (beyond 200 ms after the stimulus onset). Moreover, electrophysiological evidence based on the N2 and P3 components make it reasonable to argue for the existence of a dichotomy between subitizing (for sets of less than four items) and counting (for sets of four and more items). Source estimation suggests that subitizing and counting, though being distinct brain processes, do recruit similar brain areas. (c) 2005 Elsevier Ltd. All rights reserved.
关键词subitizing counting event-related potential (ERP)
学科领域认知心理学
收录类别SCI ; SSCI
语种英语
WOS记录号WOS:000237637400011
引用统计
文献类型期刊论文
条目标识符http://ir.psych.ac.cn/handle/311026/5283
专题中国科学院心理研究所回溯数据库(1956-2010)
通讯作者Y. J. Luo
作者单位1.Chinese Acad Sci, Inst Psychol, Key Lab Mental Hlth, Beijing 100101, Peoples R China
2.MPI Human Cognit & Brain Sci, Leipzig, Germany
3.Beijing Normal Univ, Nat Key Lab Cognit Neurosci & Learning, Beijing, Peoples R China
推荐引用方式
GB/T 7714
Nan, Yun,Knoesche, Thomas R.,Luo, Yue-Jia,et al. Counting in everyday life: Discrimination and enumeration[J]. NEUROPSYCHOLOGIA,2006,44(7):1103-1113.
APA Nan, Yun,Knoesche, Thomas R.,Luo, Yue-Jia,&Y. J. Luo.(2006).Counting in everyday life: Discrimination and enumeration.NEUROPSYCHOLOGIA,44(7),1103-1113.
MLA Nan, Yun,et al."Counting in everyday life: Discrimination and enumeration".NEUROPSYCHOLOGIA 44.7(2006):1103-1113.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Nan-2006-Counting in(423KB) 开放获取--请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Nan, Yun]的文章
[Knoesche, Thomas R.]的文章
[Luo, Yue-Jia]的文章
百度学术
百度学术中相似的文章
[Nan, Yun]的文章
[Knoesche, Thomas R.]的文章
[Luo, Yue-Jia]的文章
必应学术
必应学术中相似的文章
[Nan, Yun]的文章
[Knoesche, Thomas R.]的文章
[Luo, Yue-Jia]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

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。