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首页> 外文期刊>Brain and cognition >Brain potentials elicited by matching global and occluded 3-dimensional contours
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Brain potentials elicited by matching global and occluded 3-dimensional contours

机译：通过匹配整体和封闭的3维轮廓来激发脑电势

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摘要

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.
机译：指示受试者匹配3维形式，同时记录与事件相关的电位（ERP），以探索视觉完成与冲突处理之间的关系。顺序呈现的成对刺激（S1和S2）在条件Ⅰ中是相同的，而在条件Ⅱ中，图像具有相同的轮廓，但是S2包含不可见的部分，在条件Ⅲ中，S1和S2具有不同的轮廓。受试者在两个单独的疗程中指出刺激在物理上是相同还是轮廓相似。 S2发作后，在所有情况下都记录了ERP组件P100，N150和LPC。在两个阶段中，N150在两个条件下均得到增强，而在第二和第三条件下则引起N270。 N150与视觉完成度有关，而N270与信息差异的评估有关，属于独立系统。

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