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Paper Abstract and Keywords
Presentation 2011-03-16 14:30
Psychophysical study on the human pattern recognition with masked visual search
Osamu Watanabe, Hikaru Yamada (Muroran Inst. of Tech.)
Abstract (in Japanese) (See Japanese page) 
(in English) The human visual system processes visual information hierarchically, that is, local visual features such as line orientations are extracted in early visual areas, and then complex patterns are recognized in higher cortical areas by integrating these local feature segments. On the other hand, it is known that, as well as the bottom-up hierarchical connections, there are top-down connections from the higher visual areas to the lower-order areas in the brain. There are many computational models that explain the computational role of the bi-directional connections, and many of them suggest that the visual system predicts an input stimulus via the top-down connections and corrects the recognition error. Here we examine the property of the human pattern recognition with masked visual search paradigm. The result showed that the reaction times (RT) were modulated by the mask stimuli, and the RT modulations depended on the types of mask pattern. This result suggests that the existence of the prediction-correction process in the pattern recognition system.
Keyword (in Japanese) (See Japanese page) 
(in English) Visual information processing / Pattern recognition / Bi-directional connection / Visual search task / Masking / / /  
Reference Info. ITE Tech. Rep., vol. 35, no. 16, HI2011-54, pp. 101-104, March 2011.
Paper # HI2011-54 
Date of Issue 2011-03-08 (HI) 
ISSN Print edition: ISSN 1342-6893  Online edition: ISSN 2424-1970
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Conference Information
Committee HI  
Conference Date 2011-03-15 - 2011-03-16 
Place (in Japanese) (See Japanese page) 
Place (in English) Tokyo Univ. of Tech. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To HI 
Conference Code 2011-03-HI 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Psychophysical study on the human pattern recognition with masked visual search 
Sub Title (in English)  
Keyword(1) Visual information processing  
Keyword(2) Pattern recognition  
Keyword(3) Bi-directional connection  
Keyword(4) Visual search task  
Keyword(5) Masking  
1st Author's Name Osamu Watanabe  
1st Author's Affiliation Muroran Institute of Technology (Muroran Inst. of Tech.)
2nd Author's Name Hikaru Yamada  
2nd Author's Affiliation Muroran Institute of Technology (Muroran Inst. of Tech.)
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Date Time 2011-03-16 14:30:00 
Presentation Time 20 
Registration for HI 
Paper # HI2011-54 
Volume (vol) 35 
Number (no) no.16 
Page pp.101-104 
Date of Issue 2011-03-08 (HI) 

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