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Paper Abstract and Keywords
Presentation 2011-03-16 16:20
Influence of three dimensional convex/concave structure on contour integration.
Yoshiaki Kouno, Masayuki Kikuchi (Tokyo Univ. of Tech.)
Abstract (in Japanese) (See Japanese page) 
(in English) We performed psychophysical experiments using path-paradigm addressing whether 3D convex / concave contour was encoded in separate neurons or not. The stimulus element composed of two equilateral triangles that share one of their edges, and each triangle has dots in its inner region. The stimulus elements have 3D convex / concave structure with a bend. In experiment 1, we used three types of paths: homogeneous concave elements, homogeneous convex, elements, and alternation of convex / concave elements. The rest stimulus elements are arranged randomly. We obtained the result that subjects could not detect alternating path well. In experiment 2, we used only two types of paths: homogeneous concave elements, homogeneous convex, elements. Subject can detect well them equally. These results suggest that the visual system has separate neurons processing 3D convex/ concave edges.
Keyword (in Japanese) (See Japanese page) 
(in English) psychology physics experiment / contour integration / three dimensional convexity/concavity / path-paradigm / / / /  
Reference Info. ITE Tech. Rep., vol. 35, no. 16, HI2011-59, pp. 121-124, March 2011.
Paper # HI2011-59 
Date of Issue 2011-03-08 (HI) 
ISSN Print edition: ISSN 1342-6893
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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) Influence of three dimensional convex/concave structure on contour integration. 
Sub Title (in English)  
Keyword(1) psychology physics experiment  
Keyword(2) contour integration  
Keyword(3) three dimensional convexity/concavity  
Keyword(4) path-paradigm  
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1st Author's Name Yoshiaki Kouno  
1st Author's Affiliation Tokyo University of Technology (Tokyo Univ. of Tech.)
2nd Author's Name Masayuki Kikuchi  
2nd Author's Affiliation Tokyo University of Technology (Tokyo Univ. of Tech.)
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Speaker Author-1 
Date Time 2011-03-16 16:20:00 
Presentation Time 20 minutes 
Registration for HI 
Paper # HI2011-59 
Volume (vol) vol.35 
Number (no) no.16 
Page pp.121-124 
#Pages 4 
Date of Issue 2011-03-08 (HI) 

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