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Paper Abstract and Keywords
Presentation 2012-07-22 13:15
[Invited Talk] Amplitude drops facilitate categorization and discrimination of length contrasts
Shigeto Kawahara (Rutgers Univ.) TL2012-22
Abstract (in Japanese) (See Japanese page) 
(in English) Kato et al. showed that given streams of sounds, listeners use amplitude changes to demarcate segmental boundaries. This study builds on this result and argues that amplitude changes facilitate categorization and discrimination of consonantal short/long contrasts in intervocalic position. Given non-speech stimuli mimicking VCV-sequences, larger amplitude changes in VC- and CV-transitions improved the perceptibility of the length of C. The result implies that in real speech, short/long contrasts are harder to perceive for more sonorous consonants. This conclusion in turn accords well with the phonological, cross-linguistic observation that geminates of more sonorous consonants are disprefered more strongly in natural languages, instantiating a case of contrast dispersion.
Keyword (in Japanese) (See Japanese page) 
(in English) perception of duration / geminates / short/long contrasts / contrast dispersion / amplitude changes / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 145, TL2012-22, pp. 67-72, July 2012.
Paper # TL2012-22 
Date of Issue 2012-07-14 (TL) 
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. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee TL  
Conference Date 2012-07-21 - 2012-07-22 
Place (in Japanese) (See Japanese page) 
Place (in English) Yamagata University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Language Processing and Learning 
Paper Information
Registration To TL 
Conference Code 2012-07-TL 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Amplitude drops facilitate categorization and discrimination of length contrasts 
Sub Title (in English)  
Keyword(1) perception of duration  
Keyword(2) geminates  
Keyword(3) short/long contrasts  
Keyword(4) contrast dispersion  
Keyword(5) amplitude changes  
1st Author's Name Shigeto Kawahara  
1st Author's Affiliation Rutgers University (Rutgers Univ.)
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Date Time 2012-07-22 13:15:00 
Presentation Time 60 
Registration for TL 
Paper # IEICE-TL2012-22 
Volume (vol) IEICE-112 
Number (no) no.145 
Page pp.67-72 
#Pages IEICE-6 
Date of Issue IEICE-TL-2012-07-14 

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