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Neural mechanisms of unconscious visual motion priming
Luo, YJ; Jiang, Y; Tang, YY; Parasuraman, R; Y. J. Luo
2002-02-01
Source PublicationCHINESE SCIENCE BULLETIN
ISSN1001-6538
SubtypeArticle
Volume47Issue:3Pages:193-197
AbstractThe 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.
Keywordrepetition blindness perception signals
Subject Area认知心理学
Indexed BySCI
Language英语
WOS IDWOS:000174263500005
Citation statistics
Document Type期刊论文
Identifierhttp://ir.psych.ac.cn/handle/311026/5577
Collection中国科学院心理研究所回溯数据库(1956-2010)
Corresponding AuthorY. J. Luo
Affiliation1.Chinese Acad Sci, Inst Psychol, Beijing 100101, Peoples R China
2.NIMH, Bethesda, MD 20892 USA
3.Catholic Univ Amer, Washington, DC 20064 USA
Recommended Citation
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.
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