Subjects were instructed to match 3-dimensional forms while event-related potentials (ERPs) were recorded to explore the relationship between visual completion and conflict processing. Sequentially presented paired stimuli (S1 and S2) were identical in condition I, while in condition II the images were of the same contour, but S2 contained an invisible portion, and in condition III S1 and S2 were of different contours. Subjects indicated if stimuli were physically identical or contour similar in two separate sessions. Following the onset of S2, ERP components P100, N150, and LPC were recorded in all conditions. N150 was enhanced in condition II in both sessions, and N270 was elicited in conditions II and III. N150 is related to visual completion, while N270 is related to the evaluation of information discrepancy, belonging to independent systems. (C) 2003 Elsevier Inc. All rights reserved.
基金：
This work was supported by the Beijing Natural Science Foundation (7002021; 7012014).
第一作者机构：[1]Department of Neurology, Xuanwu Hospital, Capital University of Medical Sciences, Beijing 100053, PR China
通讯作者：
通讯机构：[1]Department of Neurology, Xuanwu Hospital, Capital University of Medical Sciences, Beijing 100053, PR China
推荐引用方式(GB/T 7714)：
Yuping Wang,Yuanyuan Zhang,Huijun Wang,et al.Brain potentials elicited by matching global and occluded 3-dimensional contours[J].BRAIN AND COGNITION.2003,53(1):28-33.doi:10.1016/S0278-2626(03)00186-6.
APA：
Yuping Wang,Yuanyuan Zhang,Huijun Wang,Lili Cui&Shujuan Tian.(2003).Brain potentials elicited by matching global and occluded 3-dimensional contours.BRAIN AND COGNITION,53,(1)
MLA：
Yuping Wang,et al."Brain potentials elicited by matching global and occluded 3-dimensional contours".BRAIN AND COGNITION 53..1(2003):28-33
