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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
Jason D. Zevin; Jianfeng Yang; Jeremy I. Skipper; Bruce D. McCandliss
2010
Source PublicationJOURNAL OF NEUROSCIENCE
ISSN0270-6474
Volume30Issue:3Pages:1110-1117
Other AbstractFunctional 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.
Subject Area心理语言学
Indexed BySCI
Language英语
Funding Project二室杨玉芳课题组
Document Type期刊论文
Identifierhttp://ir.psych.ac.cn/handle/311026/7195
Collection中国科学院心理研究所回溯数据库(1956-2010)
Corresponding AuthorJason D. Zevin
Recommended Citation
GB/T 7714
Jason D. Zevin,Jianfeng Yang,Jeremy I. Skipper,等. 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 Jason D. Zevin,Jianfeng Yang,Jeremy I. Skipper,&Bruce D. McCandliss.(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 Jason D. Zevin,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.
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