Domain General Change Detection Accounts for "Dishabituation" Effects in Temporal-Parietal Regions in Functional Magnetic Resonance Imaging Studies of Speech Perception

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	Domain General Change Detection Accounts for "Dishabituation" Effects in Temporal-Parietal Regions in Functional Magnetic Resonance Imaging Studies of Speech Perception
	Zevin, Jason D.1; Yang, Jianfeng2 ; Skipper, Jeremy I.1; McCandliss, Bruce D.3
摘要	Functional magnetic resonance imaging ( fMRI) studies of speech sound categorization often compare conditions in which a stimulus is presented repeatedly to conditions in which multiple stimuli are presented. This approach has established that a set of superior temporal and inferior parietal regions respond more strongly to conditions containing stimulus change. Here, we examine whether this contrast is driven by habituation to a repeating condition or by selective responding to change. Experiment 1 directly tests this by comparing the observed response to long trains of stimuli against a constructed hemodynamic response modeling the hypothesis that no habituation occurs. The results are consistent with the view that enhanced response to conditions involving phonemic variability reflect change detection. In a second experiment, the specificity of these responses to linguistically relevant stimulus variability was studied by including a condition in which the talker, rather than phonemic category, was variable from stimulus to stimulus. In this context, strong change detection responses were observed to changes in talker, but not to changes in phoneme category. The results prompt a reconsideration of two assumptions common to fMRI studies of speech sound categorization: they suggest that temporoparietal responses in passive paradigms such as those used here are better characterized as reflecting change detection than habituation, and that their apparent selectivity to speech sound categories may reflect a more general preference for variability in highly salient or behaviorally relevant stimulus dimensions.
	2010-01-20
语种	英语
发表期刊	JOURNAL OF NEUROSCIENCE
ISSN	0270-6474
卷号	30 期号:3 页码:1110-1117
期刊论文类型	Article
收录类别	SCI
WOS记录号	WOS:000273779200032
引用统计	被引频次：31[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/311026/13745
专题	中国科学院心理研究所回溯数据库(1956-2010)
作者单位	1.Weill Cornell Med Coll, Sackler Inst Dev Psychobiol, New York, NY 10065 USA 2.Chinese Acad Sci, Inst Psychol, Beijing 100101, Peoples R China 3.Vanderbilt Univ, Peabody Coll Educ & Human Dev, Dept Psychol, Nashville, TN 37240 USA
推荐引用方式 GB/T 7714	Zevin, Jason D.,Yang, Jianfeng,Skipper, Jeremy I.,et al. Domain General Change Detection Accounts for "Dishabituation" Effects in Temporal-Parietal Regions in Functional Magnetic Resonance Imaging Studies of Speech Perception[J]. JOURNAL OF NEUROSCIENCE,2010,30(3):1110-1117.
APA	Zevin, Jason D.,Yang, Jianfeng,Skipper, Jeremy I.,&McCandliss, Bruce D..(2010).Domain General Change Detection Accounts for "Dishabituation" Effects in Temporal-Parietal Regions in Functional Magnetic Resonance Imaging Studies of Speech Perception.JOURNAL OF NEUROSCIENCE,30(3),1110-1117.
MLA	Zevin, Jason D.,et al."Domain General Change Detection Accounts for "Dishabituation" Effects in Temporal-Parietal Regions in Functional Magnetic Resonance Imaging Studies of Speech Perception".JOURNAL OF NEUROSCIENCE 30.3(2010):1110-1117.