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Paper Abstract and Keywords
Presentation 2010-10-22 13:00
Fatigue Test Method Using Order Threshold by Two-Pulse Stimuli Synchronized by Earlobe Photoplethysmogram for Auditory and Tactile
Sho Arai, Kenji Furihata (Shinshu Univ.) EA2010-76
Abstract (in Japanese) (See Japanese page) 
(in English) Order threshold (OT) represents a minimum time interval that is necessary for subject to be able to indicate the correct temporal order between two stimuli. Most interesting is the result for the regime 3 ms < &#8710;t < 30 ms. Here, two individual different events can be discriminated, but their temporal sequence cannot be assigned correctly: a so-called order threshold. In our previous paper [1], the measurement method for order threshold by two-pulse stimuli synchronized by earlobe photoplethysmogram was proposed. Using this method, it could be said that the sensitivities of visual is clearly affected by blood flow rate. This paper was experimentally investigated whether the sensitivities of auditory and tactile are influenced by a change heart beating, or not, when strong stimuli (auditory stimulus: 109dB, white noise, tactile stimulus: 5G, sine wave, 5min or 10min) were exposed to subjects. From the results, it can be found that (a) the sensitivity of tactile is affected by strong stimuli and not by blood flow rate, (b) the sensitivity of auditory is not affected by strong stimuli and blood flow rate.
Keyword (in Japanese) (See Japanese page) 
(in English) Fatigue / Order Threshold / Earlobe Photoplethysmogram / Auditory / Tactile / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 239, EA2010-76, pp. 109-114, Oct. 2010.
Paper # EA2010-76 
Date of Issue 2010-10-14 (EA) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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)
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Conference Information
Committee EA  
Conference Date 2010-10-21 - 2010-10-22 
Place (in Japanese) (See Japanese page) 
Place (in English) Kanazawa-city Omi-cho Koryu Plaza 
Topics (in Japanese) (See Japanese page) 
Topics (in English) General Topics 
Paper Information
Registration To EA 
Conference Code 2010-10-EA 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Fatigue Test Method Using Order Threshold by Two-Pulse Stimuli Synchronized by Earlobe Photoplethysmogram for Auditory and Tactile 
Sub Title (in English)  
Keyword(1) Fatigue  
Keyword(2) Order Threshold  
Keyword(3) Earlobe Photoplethysmogram  
Keyword(4) Auditory  
Keyword(5) Tactile  
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1st Author's Name Sho Arai  
1st Author's Affiliation Shinshu University (Shinshu Univ.)
2nd Author's Name Kenji Furihata  
2nd Author's Affiliation Shinshu University (Shinshu Univ.)
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Speaker Author-1 
Date Time 2010-10-22 13:00:00 
Presentation Time 25 minutes 
Registration for EA 
Paper # EA2010-76 
Volume (vol) vol.110 
Number (no) no.239 
Page pp.109-114 
#Pages 6 
Date of Issue 2010-10-14 (EA) 

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