PSYCH OpenIR  > 中国科学院行为科学重点实验室
Similar spatial patterns of neural coding of category selectivity in FFA and VWFA under different attention conditions
Xu, Guifang1,2; Jiang, Yi3,4; Ma, Lifei1,2; Yang, Zhi1,4; Weng, Xuchu1,5; Yang, Z (reprint author), 4A Datun Rd, Beijing 100101, Peoples R China.
2012-04-01
发表期刊NEUROPSYCHOLOGIA
ISSN0028-3932
文章类型Article
卷号50期号:5页码:862-868
产权排序1,4
摘要It has long been debated whether attention alters the categorical selectivity in regions such as the fusiform face area (FFA) and the visual word form area (VWFA). We addressed this issue by examining whether the spatial pattern of neural representations for certain stimulus categories in these regions would change under different attention conditions. Faces. Chinese characters, and textures were presented in a block design fMRI experiment where participants in different runs attended to the stimuli under different conditions of attention. After localizing regions of interest (ROIs) in FFA and VWFA using general linear models, we performed spatial pattern analyses to examine both within- and cross-condition classification in these ROIs. The within-condition results replicated previous findings showing significant classification accuracy reduction when there was less attention compared with more attention. Critically, cross-condition classification in both FFA and VWFA revealed significantly above-chance accuracy for all stimulus categories, suggesting similar spatial neural representations across different attention conditions. Further strengthening this conclusion, when the contrast-to-noise ratio (CNR) of the signals was adjusted to increase signal strength, cross-condition classification accuracy for faces in FFA and for Chinese characters in VWFA improved significantly, even approaching within-condition accuracy. This indicates that attention does not modulate the spatial pattern of neural representations involved in category selectivity, but only changes the signal strength relative to the noise level. (C) 2012 Elsevier Ltd. All rights reserved.
关键词fMRI Fusiform face area Visual word form area Multi-voxel pattern analysis (MVPA) Contrast-to-noise ratio
学科领域Cognitive Neuroscience
URL查看原文
收录类别SCI ; SSCI
语种英语
项目资助者NSFC [30900366, 31070905, 31070903] ; IPCAS [O9CX012001]
项目简介We thank Sheng He, George Northoff, Wen Zhou, and John X. Zhang for valuable comments on the manuscript. This study was supported by NSFC (30900366 to ZY; 31070905 to XW; 31070903 to YJ) and Youth fund of IPCAS (O9CX012001 to ZY).
WOS记录号WOS:000303954900033
引用统计
被引频次:10[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.psych.ac.cn/handle/311026/13262
专题中国科学院行为科学重点实验室
通讯作者Yang, Z (reprint author), 4A Datun Rd, Beijing 100101, Peoples R China.
作者单位1.Chinese Acad Sci, Inst Psychol, Key Lab Behav Sci, Beijing 100101, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
3.Chinese Acad Sci, Inst Psychol, Key Lab Mental Hlth, Beijing 100101, Peoples R China
4.Chinese Acad Sci, Inst Psychol, Magnet Resonance Imaging Res Ctr, Beijing 100101, Peoples R China
5.Hangzhou Normal Univ, Ctr Cognit & Brain Disorders, Hangzhou 310003, Zhejiang, Peoples R China
推荐引用方式
GB/T 7714
Xu, Guifang,Jiang, Yi,Ma, Lifei,et al. Similar spatial patterns of neural coding of category selectivity in FFA and VWFA under different attention conditions[J]. NEUROPSYCHOLOGIA,2012,50(5):862-868.
APA Xu, Guifang,Jiang, Yi,Ma, Lifei,Yang, Zhi,Weng, Xuchu,&Yang, Z .(2012).Similar spatial patterns of neural coding of category selectivity in FFA and VWFA under different attention conditions.NEUROPSYCHOLOGIA,50(5),862-868.
MLA Xu, Guifang,et al."Similar spatial patterns of neural coding of category selectivity in FFA and VWFA under different attention conditions".NEUROPSYCHOLOGIA 50.5(2012):862-868.
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
WOS000303954900033.p(997KB)期刊论文出版稿开放获取CC BY-NC-SA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
[Xu, Guifang]的文章
[Jiang, Yi]的文章
[Ma, Lifei]的文章
百度学术
百度学术中相似的文章
[Xu, Guifang]的文章
[Jiang, Yi]的文章
[Ma, Lifei]的文章
必应学术
必应学术中相似的文章
[Xu, Guifang]的文章
[Jiang, Yi]的文章
[Ma, Lifei]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。