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The time course of visual categorization: Electrophysiological evidence from ERP
Chen, Antao; Li, Hong; Qiu, Jiang; Luo, Yuejia
2006-07-01
Source PublicationCHINESE SCIENCE BULLETIN
ISSN1001-6538
SubtypeArticle
Volume51Issue:13Pages:1586-1592
AbstractVisual categorization can be derived from interaction between inputting features set (IFS) from outside stimuli and anticipating features set (AFS) from concept, and such interaction can take two forms: match extraction and conflict control. Using ERP recording, we investigated the temporal course of visual categorization. The results indicated that the larger the AFS, the higher the amplitude of the N1 was generated, which demonstrated the effect of the AFS on the attention. When the size of the AFS was larger than or equal to 2, prominent N2 component was elicited, which demonstrated the effect of conflict when the feature of IFS mismatched with the feature of the AFS. The judgment of category was manifested on the LPC component, and this component was also sensitive to conflict control. Based on the results, we proposed that the temporal course of visual categorization was as follows: selective attention, feature perception, feature match/extraction and judgment of category/conflict control. Among those processes, the judgment of category is the core processing; however the former three sub-processes form the base of categorization. The results are in support of the idea that LPC is responsible for high-level categorization process.; Visual categorization can be derived from interaction between inputting features set (IFS) from outside stimuli and anticipating features set (AFS) from concept, and such interaction can take two forms: match extraction and conflict control. Using ERP recording, we investigated the temporal course of visual categorization. The results indicated that the larger the AFS, the higher the amplitude of the N1 was generated, which demonstrated the effect of the AFS on the attention. When the size of the AFS was larger than or equal to 2, prominent N2 component was elicited, which demonstrated the effect of conflict when the feature of IFS mismatched with the feature of the AFS. The judgment of category was manifested on the LPC component, and this component was also sensitive to conflict control. Based on the results, we proposed that the temporal course of visual categorization was as follows: selective attention, feature perception, feature match/extraction and judgment of category/conflict control. Among those processes, the judgment of category is the core processing; however the former three sub-processes form the base of categorization. The results are in support of the idea that LPC is responsible for high-level categorization process.
Keywordvisual categorization event-related potentials AFS (anticipating features set) IFS (inputting features set) conflict control late positive complex (LPC)
Subject Area认知神经科学
Indexed BySCI ; SSCI
Language英语
WOS IDWOS:000240487600009
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.psych.ac.cn/handle/311026/5809
Collection中国科学院心理研究所回溯数据库(1956-2010)
Affiliation1.SW Univ, Sch Psychol & MOE, Chongqing 400715, Peoples R China
2.SW Univ, Key Lab Cognit & Personal, Chongqing 400715, Peoples R China
3.Beijing Normal Univ, State Key Lab Cognit Neurosci & Learning, Beijing 100101, Peoples R China
4.Chinese Acad Sci, Inst Psychol, Beijing 100875, Peoples R China
Recommended Citation
GB/T 7714
Chen, Antao,Li, Hong,Qiu, Jiang,et al. The time course of visual categorization: Electrophysiological evidence from ERP[J]. CHINESE SCIENCE BULLETIN,2006,51(13):1586-1592.
APA Chen, Antao,Li, Hong,Qiu, Jiang,&Luo, Yuejia.(2006).The time course of visual categorization: Electrophysiological evidence from ERP.CHINESE SCIENCE BULLETIN,51(13),1586-1592.
MLA Chen, Antao,et al."The time course of visual categorization: Electrophysiological evidence from ERP".CHINESE SCIENCE BULLETIN 51.13(2006):1586-1592.
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