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| Top-Down Modulations from Dorsal Stream in Lexical Recognition: An Effective Connectivity fMRI Study | |
Deng, Yuan1 ; Guo, Ruifang2,3; Ding, Guosheng2; Peng, Danling2; Deng, Y (reprint author), Chinese Acad Sci, Key Lab Behav Sci, Inst Psychol, Beijing, Peoples R China.
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| 心理所单位排序 | 1 |
| 摘要 | Both the ventral and dorsal visual streams in the human brain are known to be involved in reading. However, the interaction of these two pathways and their responses to different cognitive demands remains unclear. In this study, activation of neural pathways during Chinese character reading was acquired by using a functional magnetic resonance imaging (fMRI) technique. Visual-spatial analysis (mediated by the dorsal pathway) was disassociated from lexical recognition (mediated by the ventral pathway) via a spatial-based lexical decision task and effective connectivity analysis. Connectivity results revealed that, during spatial processing, the left superior parietal lobule (SPL) positively modulated the left fusiform gyrus (FG), while during lexical processing, the left SPL received positive modulatory input from the left inferior frontal gyrus (IFG) and sent negative modulatory output to the left FG, These findings suggest that the dorsal stream is highly involved in lexical recognition and acts as a top-down modulator for lexical processing. |
| 学科领域 | Cognitive Psychology |
| 2012-03-13 | |
| 语种 | 英语 |
| 发表期刊 | PLOS ONE
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| ISSN | 1932-6203 |
| 卷号 | 7期号:3 |
| 期刊论文类型 | Article |
| URL | 查看原文 |
| 收录类别 | SCI |
| 项目简介 | This work was supported by grants from National Nature Science Foundation of China (NSFC, 31170969, 30870757, 30700232) and Program for Changjiang Scholars and Innovative Research Team in University (PCSIRT). The funders had no role in study, design, data collection and analysis, decision to publish, or preparation of the manuscript. |
| WOS记录号 | WOS:000303129700054 |
| 资助机构 | National Nature Science Foundation of China (NSFC) [31170969, 30870757, 30700232] ; Program for Changjiang Scholars and Innovative Research Team in University (PCSIRT) |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.psych.ac.cn/handle/311026/13317 |
| 专题 | 中国科学院心理健康重点实验室 |
| 通讯作者 | Deng, Y (reprint author), Chinese Acad Sci, Key Lab Behav Sci, Inst Psychol, Beijing, Peoples R China. |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Behav Sci, Inst Psychol, Beijing, Peoples R China 2.Beijing Normal Univ, State Key Lab Cognit Neurosci & Learning, Beijing 100875, Peoples R China 3.Changzhi Med Coll, Changzhi, Shanxi, Peoples R China |
| 第一作者单位 | 中国科学院行为科学重点实验室 |
| 推荐引用方式 GB/T 7714 | Deng, Yuan,Guo, Ruifang,Ding, Guosheng,et al. Top-Down Modulations from Dorsal Stream in Lexical Recognition: An Effective Connectivity fMRI Study[J]. PLOS ONE,2012,7(3). |
| APA | Deng, Yuan,Guo, Ruifang,Ding, Guosheng,Peng, Danling,&Deng, Y .(2012).Top-Down Modulations from Dorsal Stream in Lexical Recognition: An Effective Connectivity fMRI Study.PLOS ONE,7(3). |
| MLA | Deng, Yuan,et al."Top-Down Modulations from Dorsal Stream in Lexical Recognition: An Effective Connectivity fMRI Study".PLOS ONE 7.3(2012). |
| 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 | ||
| WOS000303129700054.p（615KB） | 限制开放 | CC BY-NC-SA | 请求全文 | |||
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