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Paper Abstract and Keywords
Presentation 2019-10-11 14:15
Influence of repeated presentation on anchoring effect
Yuto Takamichi, Yasuhiro Tsubo (Ritsumeikan Univ) MBE2019-30 NC2019-21
Abstract (in Japanese) (See Japanese page) 
(in English) It is widely known that when an individual estimates a value after comparing it with a reference value presented previously (anchor), the estimated value tend to become close to the anchor.
The mechanism of this effect called "anchoring effect" has been extensively studied in the fields of cognitive psychology and behavioral economics.
In most previous studies, however, subjects did not require answering more than one to each question, so there have been few studies investigating how estimated values are influenced by external information presented successively.
In addition, since most studies have adopted questionnaire for answering, the influence of bias due to the surrounding environment and mood could not been ignored.
In this study, we performed an experimental task of updating the estimate value according to the repeatedly presented information and recorded EEG data from the subject during the task.
Subjects performed 3 trials consist of 5 consecutive events whose anchor conditions are different one another per 8 different estimation targets.
As a result, the repeating trials made the variation in the estimated values smaller regardless of the anchor conditions,
while the repeating events made the estimation variation change depending on the anchor conditions.
In addition, the variation of the estimated value for each trial is reflected in the difference between the maximum and minimum event-related potential amplitude from 200ms to 400ms, while the variation of the estimated value for each event was reflected in the potential amplitude averaged over the 400-600ms time window.
Keyword (in Japanese) (See Japanese page) 
(in English) repeated presentation / anchoring effect / cognitive bias / event-related potential / / / /  
Reference Info. IEICE Tech. Rep., vol. 119, no. 225, NC2019-21, pp. 7-11, Oct. 2019.
Paper # NC2019-21 
Date of Issue 2019-10-04 (MBE, 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 MBE2019-30 NC2019-21

Conference Information
Committee MBE NC  
Conference Date 2019-10-11 - 2019-10-12 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To NC 
Conference Code 2019-10-MBE-NC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Influence of repeated presentation on anchoring effect 
Sub Title (in English)  
Keyword(1) repeated presentation  
Keyword(2) anchoring effect  
Keyword(3) cognitive bias  
Keyword(4) event-related potential  
1st Author's Name Yuto Takamichi  
1st Author's Affiliation Ritsumeikan University (Ritsumeikan Univ)
2nd Author's Name Yasuhiro Tsubo  
2nd Author's Affiliation Ritsumeikan University (Ritsumeikan Univ)
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Date Time 2019-10-11 14:15:00 
Presentation Time 15 
Registration for NC 
Paper # IEICE-MBE2019-30,IEICE-NC2019-21 
Volume (vol) IEICE-119 
Number (no) no.224(MBE), no.225(NC) 
Page pp.7-11 
#Pages IEICE-5 
Date of Issue IEICE-MBE-2019-10-04,IEICE-NC-2019-10-04 

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