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Left fusiform BOLD responses are inversely related to word-likeness in a one-back task
Wang, Xiaojuan2; Yang, Jianfeng1; Shu, Hua2; Zevin, Jason D.3; Yang, JF (reprint author), Chinese Acad Sci, Inst Psychol, Beijing 100864, Peoples R China.
2011-04-01
发表期刊NEUROIMAGE
ISSN1053-8119
文章类型Article
卷号55期号:3页码:1346-1356
产权排序2
摘要Although its precise functional contribution to reading remains unclear, there is broad consensus that an activity in the left mid-fusiform gyrus is highly sensitive to written words and word-like stimuli. In the current study, we take advantage of a particularity of the Chinese writing system in order to manipulate word-likeness parametrically, from real characters, to pseudo-characters that vary in whether they contain phonological and semantic cues, to artificial stimuli with varying surface similarity to real characters. In a one-back task, BOLD activity in the left mid-fusiform was inversely related to word-likeness, such that the least activity was observed in response to real characters, and the greatest to artificial stimuli that violate the orthotactic constraints of the writing system. One possible explanation for this surprising result is that the short-term memory demands of the one-back task put more pressure on the visual system when other sources of information cannot be used to aid in detecting repeated stimuli. For real characters and, to a lesser extent for pseudo-characters, information about meaning and pronunciation can contribute to performance, whereas artificial stimuli are entirely dependent on visual information. Consistent with this view, functional connectivity analyses revealed a strong positive relationship between left mid-fusiform and other visual areas, whereas areas typically involved in phonological and semantic processing for text were negatively correlated with this region. (C) 2011 Elsevier Inc. All rights reserved.
学科领域Cognitive Psychology,Developmental Psychology
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收录类别SCI
语种英语
项目资助者Program for Changjiang Scholars and Innovative Research Team in University [IRT0710] ; NSF of China [30870758] ; NSF of Beijing [7092051] ; NIH [R21-DC0008969]
项目简介The authors would like to thank Guoqing Xu and Guangzhen Jia's work on the data collection. This research was supported by Program for Changjiang Scholars and Innovative Research Team in University (IRT0710), NSF of China 30870758,NSF of Beijing 7092051 (HS) and NIH R21-DC0008969 (JDZ).
WOS记录号WOS:000288313800047
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文献类型期刊论文
条目标识符http://ir.psych.ac.cn/handle/311026/11882
专题认知与发展心理学研究室
通讯作者Yang, JF (reprint author), Chinese Acad Sci, Inst Psychol, Beijing 100864, Peoples R China.
作者单位1.Chinese Acad Sci, Inst Psychol, Beijing 100864, Peoples R China
2.Beijing Normal Univ, State Key Lab Cognit Neurosci & Learning, Beijing 100875, Peoples R China
3.Weill Cornell Med Coll, Sackler Inst Dev Psychobiol, New York, NY USA
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Wang, Xiaojuan,Yang, Jianfeng,Shu, Hua,et al. Left fusiform BOLD responses are inversely related to word-likeness in a one-back task[J]. NEUROIMAGE,2011,55(3):1346-1356.
APA Wang, Xiaojuan,Yang, Jianfeng,Shu, Hua,Zevin, Jason D.,&Yang, JF .(2011).Left fusiform BOLD responses are inversely related to word-likeness in a one-back task.NEUROIMAGE,55(3),1346-1356.
MLA Wang, Xiaojuan,et al."Left fusiform BOLD responses are inversely related to word-likeness in a one-back task".NEUROIMAGE 55.3(2011):1346-1356.
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