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
发表期刊JOURNAL OF NEUROSCIENCE
ISSN0270-6474
卷号30期号:3页码:1110-1117
其他摘要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.
学科领域心理语言学
收录类别SCI
语种英语
资助项目二室杨玉芳课题组
文献类型期刊论文
条目标识符http://ir.psych.ac.cn/handle/311026/7195
专题中国科学院心理研究所回溯数据库(1956-2010)
通讯作者Jason D. Zevin
推荐引用方式
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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