Decomposing the spatiotemporal signature in dynamic 3D object recognition

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	Decomposing the spatiotemporal signature in dynamic 3D object recognition
	Wang, Ying1,2 ; Zhang, Kan1 ; Zhang K(张侃)
摘要	The current study investigated the long-term representation of spatiotemporal signature (J. V. Stone, 1998) and its coding nature in a dynamic object recognition task. In Experiment 1, the observers' recognition performance was impaired by an overall reversal of the studied objects' learning view sequences even when they were unsmooth, suggesting that the spatiotemporal appearance of the objects was used for recognition, and this effect was not restricted to smooth motion condition. In another four experiments, a feature reversal paradigm was applied that only the global-scale or local-scale dynamic feature of the view sequences was reversed at a time. The reversal effect still held, but it was selective to the sequence's feature saliency, suggesting that statistical representation based on specific features instead of the whole view sequence was used for recognition. Furthermore, top-down regulation on sequence smoothness was observed that the observers perceived the objects as moving in a smoother manner than they actually were. These results extend an emerging framework that argues the spatiotemporal appearance of a dynamic object contributes to its recognition. The spatiotemporal signature might be coded in a feature-based manner under the law of perceptual organization, and the coding process is adaptive to variation of the sequence's temporal order.
关键词	dynamic object recognition reversal effect spatiotemporal signature perceptual organization top-down regulation
学科领域	认知心理学
	2010
语种	英语
发表期刊	JOURNAL OF VISION
ISSN	1534-7362
卷号	10 期号:10 页码:001-016
期刊论文类型	Article
收录类别	SCI ; SSCI
资助项目	二室蒋毅课题组
WOS记录号	WOS:000281462400023
引用统计	被引频次：3[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/311026/7199
专题	中国科学院心理研究所回溯数据库(1956-2010)
通讯作者	Zhang K(张侃)
作者单位	1.Chinese Acad Sci, Inst Psychol, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing, Peoples R China
第一作者单位	中国科学院心理研究所
推荐引用方式 GB/T 7714	Wang, Ying,Zhang, Kan,Zhang K. Decomposing the spatiotemporal signature in dynamic 3D object recognition[J]. JOURNAL OF VISION,2010,10(10):001-016.
APA	Wang, Ying,Zhang, Kan,&张侃.(2010).Decomposing the spatiotemporal signature in dynamic 3D object recognition.JOURNAL OF VISION,10(10),001-016.
MLA	Wang, Ying,et al."Decomposing the spatiotemporal signature in dynamic 3D object recognition".JOURNAL OF VISION 10.10(2010):001-016.

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