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Paper Abstract and Keywords
Presentation 2010-01-28 10:00
The study of olfactory information processing in human brain -- odor evoked potentials by pleasant and unpleasant smells --
Shinji Yamaguchi, Tomohiko Igasaki, Yuki Hayashida, Nobuki Murayama (Kumamoto Univ.) MBE2009-77
Abstract (in Japanese) (See Japanese page) 
(in English) In this report, to clarify the mechanism of olfactory information processing in human brain, we investigated the relationship between sensory evaluation and EEG response when a peach (pleasant) smell or a putrid (unpleasant) smell was delivered to the human. 10 healthy men were participated. The subjects were instructed to evaluate the pleasant/unpleasant level and the odor magnitude for each odor stimulus. EEG was also recorded during the same level/magnitude odor stimulation. According to the grand mean waveform, positive potentials were observed at latency around 750 msec and 500 msec in pleasant and in unpleasant smell condition, respectively. Despite of using the same level/magnitude odor in sensory evaluation, a quick response observed in unpleasant smell condition suggested that the putrid smell might be recognized as a dangerous smell for human.
Keyword (in Japanese) (See Japanese page) 
(in English) pleasant / olfaction / sensory evaluation / olfactory evoked potential / / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 406, MBE2009-77, pp. 1-4, Jan. 2010.
Paper # MBE2009-77 
Date of Issue 2010-01-21 (MBE) 
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)
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Conference Information
Committee MBE  
Conference Date 2010-01-28 - 2010-01-29 
Place (in Japanese) (See Japanese page) 
Place (in English) Kumamoto Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) ME in general 
Paper Information
Registration To MBE 
Conference Code 2010-01-MBE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) The study of olfactory information processing in human brain 
Sub Title (in English) odor evoked potentials by pleasant and unpleasant smells 
Keyword(1) pleasant  
Keyword(2) olfaction  
Keyword(3) sensory evaluation  
Keyword(4) olfactory evoked potential  
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1st Author's Name Shinji Yamaguchi  
1st Author's Affiliation Kumamoto University (Kumamoto Univ.)
2nd Author's Name Tomohiko Igasaki  
2nd Author's Affiliation Kumamoto University (Kumamoto Univ.)
3rd Author's Name Yuki Hayashida  
3rd Author's Affiliation Kumamoto University (Kumamoto Univ.)
4th Author's Name Nobuki Murayama  
4th Author's Affiliation Kumamoto University (Kumamoto Univ.)
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Speaker Author-1 
Date Time 2010-01-28 10:00:00 
Presentation Time 25 minutes 
Registration for MBE 
Paper # MBE2009-77 
Volume (vol) vol.109 
Number (no) no.406 
Page pp.1-4 
#Pages 4 
Date of Issue 2010-01-21 (MBE) 

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