Neural mechanisms of unconscious visual motion priming

PSYCH OpenIR > 中国科学院心理研究所回溯数据库(1956-2010)

	Neural mechanisms of unconscious visual motion priming
	Luo, YJ; Jiang, Y; Tang, YY ; Parasuraman, R ; Y. J. Luo
摘要	The neural correlates of the motion priming were examined In normal young subjects using event-related brain potentials (ERPs) and functional magnetic resonance imaging (fMRI). Visual motion perception can be unconsciously biased in favor of a particular direction by a preceding motion in that direction. Motion priming first involved an enhancement of ERP amplitude about 100 ms following the onset of motion. The amplitudes of ERP components after 350 ms were also increased. The fMRI results suggest that the early-latency effect reflects modulation of neural responses in extrastriate cortex. Higher-level visual processing areas, including cortical regions MT/MST and the intraparietal cortices were also activated. The findings provide direct evidence that unconscious priming of motion perception is the result of interaction of direction-selective neural responses to motion stimuli. The results cannot be accounted for by refractoriness of neural responses, but instead support a theory of motion priming based on motion opponency, as proposed in computational models.; The neural correlates of the motion priming were examined In normal young subjects using event-related brain potentials (ERPs) and functional magnetic resonance imaging (fMRI). Visual motion perception can be unconsciously biased in favor of a particular direction by a preceding motion in that direction. Motion priming first involved an enhancement of ERP amplitude about 100 ms following the onset of motion. The amplitudes of ERP components after 350 ms were also increased. The fMRI results suggest that the early-latency effect reflects modulation of neural responses in extrastriate cortex. Higher-level visual processing areas, including cortical regions MT/MST and the intraparietal cortices were also activated. The findings provide direct evidence that unconscious priming of motion perception is the result of interaction of direction-selective neural responses to motion stimuli. The results cannot be accounted for by refractoriness of neural responses, but instead support a theory of motion priming based on motion opponency, as proposed in computational models.
关键词	repetition blindness perception signals
学科领域	认知心理学
	2002-02-01
语种	英语
发表期刊	CHINESE SCIENCE BULLETIN
ISSN	1001-6538
卷号	47 期号:3 页码:193-197
期刊论文类型	Article
收录类别	SCI
WOS记录号	WOS:000174263500005
引用统计	被引频次：1[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/311026/5577
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.Chinese Acad Sci, Inst Psychol, Beijing 100101, Peoples R China 2.NIMH, Bethesda, MD 20892 USA 3.Catholic Univ Amer, Washington, DC 20064 USA
推荐引用方式 GB/T 7714	Luo, YJ,Jiang, Y,Tang, YY,et al. Neural mechanisms of unconscious visual motion priming[J]. CHINESE SCIENCE BULLETIN,2002,47(3):193-197.
APA	Luo, YJ,Jiang, Y,Tang, YY,Parasuraman, R,&Y. J. Luo.(2002).Neural mechanisms of unconscious visual motion priming.CHINESE SCIENCE BULLETIN,47(3),193-197.
MLA	Luo, YJ,et al."Neural mechanisms of unconscious visual motion priming".CHINESE SCIENCE BULLETIN 47.3(2002):193-197.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Luo-2002-Neural mech（617KB）			开放获取	--	浏览下载