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Paper Abstract and Keywords
Presentation 2008-12-18 13:25
As quickly and accurately as possible -- The target probability optimally modulates the search termination time --
Kazuya Ishibashi, Shinichi Kita (Kobe Univ.) HIP2008-124
Abstract (in Japanese) (See Japanese page) 
(in English) We propose a model to elucidate the underlying mechanism of the phenomena that the target probability modulates the termination time in visual search tasks. Based on the optimal foraging theory, the model assumes the optimization of the item per search time, which evaluation function is determined with the target probability and the hit rate. The model thus predicts search termination times. To confirm the model, we conduct experiments of visual search tasks at three difficulty levels and compare obtained search termination times and predicted ones. Search tasks at relatively difficult levels yield search termination times matched with the prediction by the model. These results indicate that humans conduct visual search tasks by maximizing the evaluation function of search times. This performance optimization may reflect an evolutionary competence, which humans have acquired through hunting and gathering.
Keyword (in Japanese) (See Japanese page) 
(in English) Visual search / Target probability / Search termination time / Optimal foraging theory / / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 356, HIP2008-124, pp. 7-12, Dec. 2008.
Paper # HIP2008-124 
Date of Issue 2008-12-11 (HIP) 
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 HIP2008-124

Conference Information
Committee HIP  
Conference Date 2008-12-18 - 2008-12-19 
Place (in Japanese) (See Japanese page) 
Place (in English) RIEC 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To HIP 
Conference Code 2008-12-HIP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) As quickly and accurately as possible 
Sub Title (in English) The target probability optimally modulates the search termination time 
Keyword(1) Visual search  
Keyword(2) Target probability  
Keyword(3) Search termination time  
Keyword(4) Optimal foraging theory  
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1st Author's Name Kazuya Ishibashi  
1st Author's Affiliation Kobe University (Kobe Univ.)
2nd Author's Name Shinichi Kita  
2nd Author's Affiliation Kobe University (Kobe Univ.)
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Speaker Author-1 
Date Time 2008-12-18 13:25:00 
Presentation Time 25 minutes 
Registration for HIP 
Paper # HIP2008-124 
Volume (vol) vol.108 
Number (no) no.356 
Page pp.7-12 
#Pages 6 
Date of Issue 2008-12-11 (HIP) 

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