Neural mechanisms of unconscious visual motion priming
文献类型：期刊论文
| 作者 | Luo, YJ ; Jiang, Y; Tang, YY; Parasuraman, R; Y. J. Luo
|
| 刊名 | CHINESE SCIENCE BULLETIN
 |
| 出版日期 | 2002-02-01 |
| 卷号 | 47期号:3页码:193-197 |
| 关键词 | repetition blindness perception signals |
| ISSN号 | 1001-6538 |
| 文献子类 | Article |
| 英文摘要 | 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. |
| 学科主题 | 认知心理学 |
| 语种 | 英语 |
| WOS记录号 | WOS:000174263500005 |
| 公开日期 | 2011-08-22 |
| 源URL | [http://ir.psych.ac.cn/handle/311026/5577]  |
| 专题 | 心理研究所_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. |
入库方式： OAI收割
来源：心理研究所
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