Priming of two-dimensional visual motion is reduced in older adults

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	Priming of two-dimensional visual motion is reduced in older adults
	Jiang, Y ; Luo, YJ ; Parasuraman, R ; Y. J. Luo
摘要	Previously, Y. Jiang, P. Greenwood, and R. Parasuraman (1999) reported that priming of rotating three-dimensional visual objects is age sensitive. The current study investigated whether there is also an age-related difference in priming with simple two-dimensional (2-D) moving stimuli (i.e., whether a prime stimulus moving in a particular direction causes a subsequent ambiguous target stimulus to be seen moving in the same direction as the prime). In 2 experiments, younger and older adults judged the directions of moving sine-wave gratings. Groups differed neither in determining the direction of a single 2-D movement nor in detecting motion reversals in successively moving gratings. However, the older group showed a significant reduction in the extent of 2-D motion priming. The decrement in older adults for visual motion priming may reflect age-related changes in temporal processing in human visual cortex.; Previously, Y. Jiang, P. Greenwood, and R. Parasuraman (1999) reported that priming of rotating three-dimensional visual objects is age sensitive. The current study investigated whether there is also an age-related difference in priming with simple two-dimensional (2-D) moving stimuli (i.e., whether a prime stimulus moving in a particular direction causes a subsequent ambiguous target stimulus to be seen moving in the same direction as the prime). In 2 experiments, younger and older adults judged the directions of moving sine-wave gratings. Groups differed neither in determining the direction of a single 2-D movement nor in detecting motion reversals in successively moving gratings. However, the older group showed a significant reduction in the extent of 2-D motion priming. The decrement in older adults for visual motion priming may reflect age-related changes in temporal processing in human visual cortex.
关键词	age-related differences apparent motion perception direction sensitivity mechanisms inertia brain area mt
学科领域	神经心理学
	2002-04-01
语种	英语
发表期刊	NEUROPSYCHOLOGY
ISSN	0894-4105
卷号	16 期号:2 页码:140-145
期刊论文类型	Article
收录类别	ISTP ; ISSHP ; SCI ; SSCI
WOS记录号	WOS:000174852600003
引用统计	被引频次：8[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/311026/5631
专题	中国科学院心理研究所回溯数据库(1956-2010)
通讯作者	Y. J. Luo
作者单位	1.NIMH, Lab Brain & Cognit, NIH, Bethesda, MD 20892 USA 2.Catholic Univ Amer, Cognit Sci Lab, Washington, DC 20064 USA 3.Chinese Acad Sci, Inst Psychol, Beijing 10101, Peoples R China 4.Catholic Univ Amer, Cognit Sci Lab, Washington, DC 20064 USA
推荐引用方式 GB/T 7714	Jiang, Y,Luo, YJ,Parasuraman, R,et al. Priming of two-dimensional visual motion is reduced in older adults[J]. NEUROPSYCHOLOGY,2002,16(2):140-145.
APA	Jiang, Y,Luo, YJ,Parasuraman, R,&Y. J. Luo.(2002).Priming of two-dimensional visual motion is reduced in older adults.NEUROPSYCHOLOGY,16(2),140-145.
MLA	Jiang, Y,et al."Priming of two-dimensional visual motion is reduced in older adults".NEUROPSYCHOLOGY 16.2(2002):140-145.

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