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Paper Abstract and Keywords
Presentation 2019-05-16 10:50
Influence of expectation for rewards on pupil information during an interactive game
Kohei Shoda, Minoru Nakayama (Tokyo Tech.) HCS2019-5 HIP2019-5
Abstract (in Japanese) (See Japanese page) 
(in English) We set up an experimental system that measures the player's expectation for reward and pupil change in
time series in a competitive game using poker that controls the expectation for reward, and measured the reaction of
eight subjects. As a result, it was confirmed that the setting of the competition game significantly changes the reward
expectation, which is the player's subjective evaluation, and at the same time, a phenomenon in which the mydriasis is
significantly associated with the reward expectation. In addition, as the frequency component of pupil diameter variation
was examined in a time series, the components of frequency power 0.35-0.70 Hz and 2.1-4.5 Hz became significantly
large when the one's own reward expectation was judged.
Keyword (in Japanese) (See Japanese page) 
(in English) Card playing / Expectation for reward / pupil diameter variation / / / / /  
Reference Info. IEICE Tech. Rep., vol. 119, no. 39, HIP2019-5, pp. 23-28, May 2019.
Paper # HIP2019-5 
Date of Issue 2019-05-09 (HCS, HIP) 
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 HCS2019-5 HIP2019-5

Conference Information
Committee HCS HIP HI-SIGCE  
Conference Date 2019-05-16 - 2019-05-17 
Place (in Japanese) (See Japanese page) 
Place (in English) Okinawa Industry Support Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To HIP 
Conference Code 2019-05-HCS-HIP-SIGCE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Influence of expectation for rewards on pupil information during an interactive game 
Sub Title (in English)  
Keyword(1) Card playing  
Keyword(2) Expectation for reward  
Keyword(3) pupil diameter variation  
1st Author's Name Kohei Shoda  
1st Author's Affiliation Tokyo Institute of Technology (Tokyo Tech.)
2nd Author's Name Minoru Nakayama  
2nd Author's Affiliation Tokyo Institute of Technology (Tokyo Tech.)
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Date Time 2019-05-16 10:50:00 
Presentation Time 25 
Registration for HIP 
Paper # IEICE-HCS2019-5,IEICE-HIP2019-5 
Volume (vol) IEICE-119 
Number (no) no.38(HCS), no.39(HIP) 
Page pp.23-28 
#Pages IEICE-6 
Date of Issue IEICE-HCS-2019-05-09,IEICE-HIP-2019-05-09 

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