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Paper Abstract and Keywords
Presentation 2019-03-04 09:30
Transition of informative areas in the human brain during haptic shape recognition of real objects
Shota Eto (UEC), Hironori nakatani (UTokyo), Yoichi Miyawaki (UEC) NC2018-48
Abstract (in Japanese) (See Japanese page) 
(in English) Shape information is vital for object recognition and it can be acquired by vision and haptic sensation. Previous studies showed object shape information is represented in patterns of brain activity of the visual and somatosensory cortex. However, it is unclear what brain areas are involved in information representation of object shape over time. In this study, we designed experiments using real objects in which subjects need longer time to recognize its object shape by touch, and investigated what brain areas represent object shape information over time using a searchlight method and time-resolved fMRI decoding approach. As a result, superior parietal lobule first showed significant decoding accuracy and then supramarginal gyrus and higher visual areas followed to show significant decoding accuracy. These results suggests that haptic information of object shape might be represented in superior parietal lobule early in time and then transferred to supramarginal gyrus and higher visual areas.
Keyword (in Japanese) (See Japanese page) 
(in English) fMRI / multi variate pattern analysis (MVPA) / Somatosensory / shape recognition / parietal lobule / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 470, NC2018-48, pp. 25-30, March 2019.
Paper # NC2018-48 
Date of Issue 2019-02-25 (NC) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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 NC2018-48

Conference Information
Committee NC MBE  
Conference Date 2019-03-04 - 2019-03-06 
Place (in Japanese) (See Japanese page) 
Place (in English) University of Electro Communications 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To NC 
Conference Code 2019-03-NC-MBE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Transition of informative areas in the human brain during haptic shape recognition of real objects 
Sub Title (in English)  
Keyword(1) fMRI  
Keyword(2) multi variate pattern analysis (MVPA)  
Keyword(3) Somatosensory  
Keyword(4) shape recognition  
Keyword(5) parietal lobule  
1st Author's Name Shota Eto  
1st Author's Affiliation The University of Electro-Communications (UEC)
2nd Author's Name Hironori nakatani  
2nd Author's Affiliation The University of Tokyo (UTokyo)
3rd Author's Name Yoichi Miyawaki  
3rd Author's Affiliation The University of Electro-Communications (UEC)
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Date Time 2019-03-04 09:30:00 
Presentation Time 25 
Registration for NC 
Paper # IEICE-NC2018-48 
Volume (vol) IEICE-118 
Number (no) no.470 
Page pp.25-30 
#Pages IEICE-6 
Date of Issue IEICE-NC-2019-02-25 

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