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Paper Abstract and Keywords
Presentation 2013-12-21 14:55
Global and local mechanisms of processing of 2-D mental rotation
Koji Chinen, Nobuhiko Asakura, Toshio Inui, Takafumi Sasaoka (Kyoto Univ.) NC2013-64
Abstract (in Japanese) (See Japanese page) 
(in English) There are two competing views about how mental rotation of objects is performed. One argues for a global, holistic strategy in which the whole object is rotated. The other argues for a local, piecemeal strategy in which individual local features are rotated. In order to address this issue, we investigated the effects of global and local stimulus properties on mental rotation performance. Specifically, we manipulated the ambiguity of an object-intrinsic axis of stimuli and the number of their convex parts. We found that the more ambiguous the object-intrinsic axis and the larger the number of convex parts, the longer the reaction times to discriminate between an object and its mirrored counterpart. Furthermore, these global and local properties independently affected the performance of mental rotation. We propose that this result can be explained by a coarse to fine strategy to compute the amount of mental rotation.
Keyword (in Japanese) (See Japanese page) 
(in English) mental rotation / object-intrinsic axis / / / / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 374, NC2013-64, pp. 63-68, Dec. 2013.
Paper # NC2013-64 
Date of Issue 2013-12-14 (NC) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF NC2013-64

Conference Information
Committee NC MBE  
Conference Date 2013-12-21 - 2013-12-21 
Place (in Japanese) (See Japanese page) 
Place (in English) Gifu University 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To NC 
Conference Code 2013-12-NC-MBE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Global and local mechanisms of processing of 2-D mental rotation 
Sub Title (in English)  
Keyword(1) mental rotation  
Keyword(2) object-intrinsic axis  
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1st Author's Name Koji Chinen  
1st Author's Affiliation Kyoto University (Kyoto Univ.)
2nd Author's Name Nobuhiko Asakura  
2nd Author's Affiliation Kyoto University (Kyoto Univ.)
3rd Author's Name Toshio Inui  
3rd Author's Affiliation Kyoto University (Kyoto Univ.)
4th Author's Name Takafumi Sasaoka  
4th Author's Affiliation Kyoto University (Kyoto Univ.)
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Speaker Author-1 
Date Time 2013-12-21 14:55:00 
Presentation Time 25 minutes 
Registration for NC 
Paper # NC2013-64 
Volume (vol) vol.113 
Number (no) no.374 
Page pp.63-68 
#Pages 6 
Date of Issue 2013-12-14 (NC) 

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