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Task by stimulus interactions in brain responses during Chinese character processing
Yang, Jianfeng2; Wang, Xiaojuan1; Shu, Hua1; Zevin, Jason D.3; Shu, H (reprint author), Beijing Normal Univ, State Key Lab Cognit Neurosci & Learning, Beijing 100877, Peoples R China.
2012-04-02
发表期刊NEUROIMAGE
ISSN1053-8119
文章类型Article
卷号60期号:2页码:979-990
产权排序1
摘要In the visual word recognition literature, it is well understood that various stimulus effects interact with behavioral task. For example, effects of word frequency are exaggerated and effects of spelling-to-sound regularity are reduced in the lexical decision task, relative to reading aloud. Neuroimaging studies of reading often examine effects of task and stimulus properties on brain activity independently, but potential interactions between task demands and stimulus effects have not been extensively explored. To address this issue, we conducted lexical decision and symbol detection tasks using stimuli that varied parametrically in their word-likeness, and tested for task by stimulus class interactions. Interactions were found throughout the reading system, such that stimulus selectivity was observed during the lexical decision task, but not during the symbol detection task. Further, the pattern of stimulus selectivity was directly related to task difficulty, so that the strongest brain activity was observed to the most word-like stimuli that required "no" responses, whereas brain activity to words, which elicit rapid and accurate "yes" responses were relatively weak. This is in line with models that argue for task-dependent specialization of brain regions, and contrasts with the notion of task-independent stimulus selectivity in the reading system. (c) 2012 Elsevier Inc. All rights reserved.
关键词Reading fMRI Task effects Testing for interactions in BOLD data
学科领域Cognitive Psychology
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收录类别SCI
语种英语
项目资助者State Key Laboratory of Cognitive Neuroscience and Learning [CNKOPZD1005] ; NIH [R21-DC0008969, R01-HD067364] ; Fundamental Research Funds for the Central Universities ; NSF of China [30870758] ; NSF of Beijing [7092051] ; Ministry of Education [10YJCZH194]
项目简介The authors would like to thank Zhichao Xia's work on the data collection. This research was supported by the Open Research Fund of the State Key Laboratory of Cognitive Neuroscience and Learning CNKOPZD1005 (J.Y.), NIH R21-DC0008969 and R01-HD067364 (J.D.Z.), the Fundamental Research Funds for the Central Universities (H.S.), NSF of China 30870758 (H.S.) and NSF of Beijing 7092051 (H.S.) and a grant from Humanities and Social Sciences project of the Ministry of Education of P.R.C. 10YJCZH194 (X.W.).
WOS记录号WOS:000303272300016
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被引频次:8[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/311026/13277
专题中国科学院行为科学重点实验室
通讯作者Shu, H (reprint author), Beijing Normal Univ, State Key Lab Cognit Neurosci & Learning, Beijing 100877, Peoples R China.
作者单位1.Beijing Normal Univ, State Key Lab Cognit Neurosci & Learning, Beijing 100877, Peoples R China
2.Chinese Acad Sci, Inst Psychol, Key Lab Behav Sci, Beijing 100101, Peoples R China
3.Weill Cornell Med Coll, Sackler Inst Dev Psychobiol, New York, NY 10021 USA
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Yang, Jianfeng,Wang, Xiaojuan,Shu, Hua,et al. Task by stimulus interactions in brain responses during Chinese character processing[J]. NEUROIMAGE,2012,60(2):979-990.
APA Yang, Jianfeng,Wang, Xiaojuan,Shu, Hua,Zevin, Jason D.,&Shu, H .(2012).Task by stimulus interactions in brain responses during Chinese character processing.NEUROIMAGE,60(2),979-990.
MLA Yang, Jianfeng,et al."Task by stimulus interactions in brain responses during Chinese character processing".NEUROIMAGE 60.2(2012):979-990.
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