Life motion signals lengthen perceived temporal duration

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	Life motion signals lengthen perceived temporal duration
	Wang, Li; Jiang, Yi
刊名	PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
	2012-03-13
卷号	109 期号:11 页码:E673-E677
关键词	point-light walker temporal expansion psychometric function
ISSN号	0027-8424
通讯作者	Jiang, Y (reprint author), Chinese Acad Sci, Inst Psychol, Key Lab Mental Hlth, Beijing 100101, Peoples R China.
产权排序	1
英文摘要	Point-light biological motions, conveying various different attributes of biological entities, have particular spatiotemporal properties that enable them to be processed with remarkable efficiency in the human visual system. Here we demonstrate that such signals automatically lengthen their perceived temporal duration independent of global configuration and without observers' subjective awareness of their biological nature. By using a duration discrimination paradigm, we showed that an upright biological motion sequence was perceived significantly longer than an inverted but otherwise identical sequence of the same duration. Furthermore, this temporal dilation effect could be extended to spatially scrambled biological motion signals, whose global configurations were completely disrupted, regardless of whether observers were aware of the nature of the stimuli. However, such an effect completely disappeared when critical biological characteristics were removed. Taken together, our findings suggest a special mechanism of time perception tuned to life motion signals and shed new light on the temporal encoding of biological motion.
学科主题	Perception psychology
收录类别	SCI
项目简介	This research was supported by grants from the National Basic Research Program of China (No. 2011CB711000), the National Key Technology R&D Program of China (No. 2012BAI36B00), the National Natural Science Foundation of China (No. 31070903), and the Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences (No. KSCX2-EW-BR-5 and No. Y1CX302005).
原文出处	http://www.pnas.org/content/109/11/E673.full.pdf+html
语种	英语
WOS记录号	WOS:000301426700009
内容类型	期刊论文
源URL	[http://ir.psych.ac.cn/handle/311026/11885]
专题	心理研究所_中国科学院心理健康重点实验室
作者单位	Chinese Acad Sci, Inst Psychol, Key Lab Mental Hlth, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Wang, Li,Jiang, Yi. Life motion signals lengthen perceived temporal duration[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2012,109(11):E673-E677.
APA	Wang, Li,&Jiang, Yi.(2012).Life motion signals lengthen perceived temporal duration.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,109(11),E673-E677.
MLA	Wang, Li,et al."Life motion signals lengthen perceived temporal duration".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 109.11(2012):E673-E677.