The Time Course of Perceptual Closure of Incomplete Visual Objects: An Event-Related Potential Study

Autor: Chenyang Liu, Bin Hao, Xiaotian Wang, Lina Li, Zhiming Bian, Changming Wang, Sha Sha, Hongge Luo, Lin Lu, Xiujun Zhang, Chao Chen
Jazyk: angličtina
Rok vydání: 2020
Předmět:
General Computer Science
Article Subject
Computer science
General Mathematics
media_common.quotation_subject
Computer applications to medicine. Medical informatics
0206 medical engineering
R858-859.7
Perceptual functions
Neurosciences. Biological psychiatry. Neuropsychiatry
Sensory system
02 engineering and technology
03 medical and health sciences
0302 clinical medicine
Event-related potential
Perception
Visual Objects
Perceptual Closure
Humans
Evoked Potentials
media_common
computer.programming_language
Aged
General Neuroscience
Cognitive neuroscience of visual object recognition
Cognition
Electroencephalography
General Medicine
020601 biomedical engineering
Pattern Recognition
Visual
Visual Perception
computer
030217 neurology & neurosurgery
Photic Stimulation
RC321-571
Cognitive psychology
Research Article
Zdroj: Computational Intelligence and Neuroscience
Computational Intelligence and Neuroscience, Vol 2020 (2020)
ISSN: 1687-5265
DOI: 10.1155/2020/8825197
Popis: 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.
Databáze: OpenAIRE
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