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Neural correlates of perceptual priming of visual motion
Jiang, Y; Luo, YJ; Parasuraman, R; Y. Jiang,Y. J. Luo
2002-01-15
Source PublicationBRAIN RESEARCH BULLETIN
ISSN0361-9230
SubtypeArticle
Volume57Issue:2Pages:211-219
AbstractIn two experiments, the temporal dynamics of neural activity underlying perceptual priming of visual motion was examined using event-related potentials (ERPs) during directional judgments of the apparent motion of two-dimensional sine-wave gratings. Compared to perceptually ambiguous motion, unambiguous left- or rightward motion was associated with enhanced ERP activity about 300 ms after the onset of apparent motion. In the second experiment, ERPs were recorded to two successive motion jumps in which an unambiguous motion jump served as a prime for a subsequent target motion that was ambiguous. The prime-target time interval was varied between 200, 400, and 1000 ms. In a control (motion reversal) condition, the two motion jumps were both unambiguous but in opposite directions. Compared to the motion reversal condition, motion priming was associated with an enhancement of ERP amplitudes at 100 ms and 350 ms following target stimulus onset. ERP enhancement was greatest at a short prime-target interval of 200 ms, which was also associated behaviorally with the strongest priming. The ERP enhancement and behavioral priming were both eliminated at the long 1000 ms prime-target interval. Functional magnetic resonance imaging (fMRI) data from a subset of subjects supported the view that motion priming involves modulation of neural responses both in early visual cortex and in later stages of visual processing.; In two experiments, the temporal dynamics of neural activity underlying perceptual priming of visual motion was examined using event-related potentials (ERPs) during directional judgments of the apparent motion of two-dimensional sine-wave gratings. Compared to perceptually ambiguous motion, unambiguous left- or rightward motion was associated with enhanced ERP activity about 300 ms after the onset of apparent motion. In the second experiment, ERPs were recorded to two successive motion jumps in which an unambiguous motion jump served as a prime for a subsequent target motion that was ambiguous. The prime-target time interval was varied between 200, 400, and 1000 ms. In a control (motion reversal) condition, the two motion jumps were both unambiguous but in opposite directions. Compared to the motion reversal condition, motion priming was associated with an enhancement of ERP amplitudes at 100 ms and 350 ms following target stimulus onset. ERP enhancement was greatest at a short prime-target interval of 200 ms, which was also associated behaviorally with the strongest priming. The ERP enhancement and behavioral priming were both eliminated at the long 1000 ms prime-target interval. Functional magnetic resonance imaging (fMRI) data from a subset of subjects supported the view that motion priming involves modulation of neural responses both in early visual cortex and in later stages of visual processing. (C) 2002 Elsevier Science Inc.
Keywordperceptual priming visual motion brain imaging ERP fMRI
Subject Area认知神经科学
Indexed BySCI
Language英语
WOS IDWOS:000173923300010
Citation statistics
Cited Times:17[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.psych.ac.cn/handle/311026/5567
Collection中国科学院心理研究所回溯数据库(1956-2010)
Corresponding AuthorY. Jiang,Y. J. Luo
Affiliation1.Catholic Univ Amer, Cognit Sci Lab, Washington, DC 20064 USA
2.NIMH, Lab Brain & Cognit, Bethesda, MD 20892 USA
3.Chinese Acad Sci, Inst Psychol, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Jiang, Y,Luo, YJ,Parasuraman, R,et al. Neural correlates of perceptual priming of visual motion[J]. BRAIN RESEARCH BULLETIN,2002,57(2):211-219.
APA Jiang, Y,Luo, YJ,Parasuraman, R,&Y. Jiang,Y. J. Luo.(2002).Neural correlates of perceptual priming of visual motion.BRAIN RESEARCH BULLETIN,57(2),211-219.
MLA Jiang, Y,et al."Neural correlates of perceptual priming of visual motion".BRAIN RESEARCH BULLETIN 57.2(2002):211-219.
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