Perceptual organization is an important part of visual and auditory information processing. In the case of visual occlusion, whether the loss of information in images could be recovered and thus perceptually closed affects object recognition. In particular, many elderly subjects have defects in object recognition ability, which may be closely related to the abnormalities of perceptual functions. This phenomenon even can be observed in the early stage of dementia. Therefore, studying the neural mechanism of perceptual closure and its relationship with sensory and cognitive processing is important for understanding how the human brain recognizes objects, inspiring the development of neuromorphic intelligent algorithms of object recognition. In this study, a new experiment was designed to explore the realistic process of perceptual closure under occlusion and intact conditions of faces and building. The analysis of the differences in ERP components P1, N1, and Ncl indicated that the subjective awareness of perceptual closure mainly occurs in Ncl, but incomplete information has been processed and showed different manners compared to complete stimuli in N170 for facial materials. Although occluded, faces, but not buildings, still maintain the specificity of perceptual processing. The Ncl by faces and buildings did not show significant differences in both amplitude and latency, suggesting a “completing” process regardless of categorical features.

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不完整视觉对象的知觉闭合时间过程：事件相关电位研究

知觉组织是视觉和听觉信息处理的重要组成部分。在视觉遮挡的情况下，图像中的信息丢失是否可以恢复并因此在感知上关闭会影响对象识别。尤其是许多老年受试者在物体识别能力方面存在缺陷，这可能与知觉功能异常密切相关。这种现象甚至可以在痴呆早期观察到。因此，研究知觉闭合的神经机制及其与感觉和认知处理的关系对于理解人脑如何识别物体具有重要意义，对开发物体识别的神经形态智能算法具有重要意义。在这项研究中，一项新的实验旨在探索在面部和建筑物的遮挡和完整条件下感知闭合的现实过程。对ERP成分P1、N1和Ncl的差异分析表明，知觉闭合的主观意识主要发生在Ncl中，但与N170中的面部材料的完整刺激相比，不完整信息被处理并表现出不同的方式。虽然被遮挡，但不是建筑物，人脸仍然保持感知处理的特异性。人脸和建筑物的 Ncl 在幅度和延迟方面没有显示出显着差异，这表明无论分类特征如何，都是一个“完成”过程。和 Ncl 表明，知觉闭合的主观意识主要发生在 Ncl 中，但与 N170 中的面部材料的完整刺激相比，不完整信息已被处理并表现出不同的方式。虽然被遮挡，但不是建筑物，人脸仍然保持感知处理的特异性。人脸和建筑物的 Ncl 在幅度和延迟方面没有显示出显着差异，这表明无论分类特征如何，都是一个“完成”过程。和 Ncl 表明，知觉闭合的主观意识主要发生在 Ncl 中，但与 N170 中的面部材料的完整刺激相比，不完整信息已被处理并表现出不同的方式。虽然被遮挡，但不是建筑物，人脸仍然保持感知处理的特异性。人脸和建筑物的 Ncl 在幅度和延迟方面没有显示出显着差异，这表明无论分类特征如何，都是一个“完成”过程。