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Paper Abstract and Keywords
Presentation 2011-03-09 09:50
A link between smoothness of tonotopic map and statistics of auditory stimuli
Hiroki Terashima, Masato Okada (Univ. of Tokyo) NC2010-182
Abstract (in Japanese) (See Japanese page) 
(in English) Physiological studies have revealed that the primary auditory cortex (A1) has a disordered tonotopic map, unlike the tidy retinotopic map of the primary visual cortex (V1). Additionally, our previous studies have shown that the different receptive field structures of A1 and V1 may reflect statistics of natural stimuli in audition and vision. We here hypothesize that the map difference is also a result of adapting to different statistics of natural stimuli. The present study describes how a V1 map model, topographic independent component analysis, can generate A1-like disordered maps, adapting to stimuli of high "auditoriness".
Keyword (in Japanese) (See Japanese page) 
(in English) primary auditory cortex (A1) / tonotopy / primary visual cortex (V1) / retinotopy / adaptation / topographic independent component analysis (TICA) / receptive field map / sparse representation  
Reference Info. IEICE Tech. Rep., vol. 110, no. 461, NC2010-182, pp. 325-330, March 2011.
Paper # NC2010-182 
Date of Issue 2011-02-28 (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 NC2010-182

Conference Information
Committee NC MBE  
Conference Date 2011-03-07 - 2011-03-09 
Place (in Japanese) (See Japanese page) 
Place (in English) Tamagawa University 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To NC 
Conference Code 2011-03-NC-MBE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A link between smoothness of tonotopic map and statistics of auditory stimuli 
Sub Title (in English)  
Keyword(1) primary auditory cortex (A1)  
Keyword(2) tonotopy  
Keyword(3) primary visual cortex (V1)  
Keyword(4) retinotopy  
Keyword(5) adaptation  
Keyword(6) topographic independent component analysis (TICA)  
Keyword(7) receptive field map  
Keyword(8) sparse representation  
1st Author's Name Hiroki Terashima  
1st Author's Affiliation The University of Tokyo (Univ. of Tokyo)
2nd Author's Name Masato Okada  
2nd Author's Affiliation The University of Tokyo (Univ. of Tokyo)
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Speaker Author-1 
Date Time 2011-03-09 09:50:00 
Presentation Time 25 minutes 
Registration for NC 
Paper # NC2010-182 
Volume (vol) vol.110 
Number (no) no.461 
Page pp.325-330 
#Pages 6 
Date of Issue 2011-02-28 (NC) 

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