Paper Abstract and Keywords |
Presentation |
2013-07-20 09:30
Brain activity by partner's selfishness modulates an effective connectivity between reward-related regions Manabu Shikauchi (ATR), Hiroaki Mizuhara (Kyoto Univ.) NC2013-19 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
We are living in interactions with many people and there is also much collaboration in our social environment. Although it may sometimes be forced collaboration work with a selfish partner, we can act stably reluctantly. We think that our brain had been adapted for the dynamic cooperativeness change. We used a centipede game as an experimental task in the functional Magnetic Resonance Imaging (fMRI). We investigated task-related regions by using a General Linear Model analysis (GLM analysis). Results of GLM analysis showed that the caudate as the reward value and that the middle cingulate cortex (MCC) and putamen activated in the case of a selfish partner. To investigate the network of these regions, we estimated effective connectivity by Dynamic Causal Modeling (DCM). Results of DCM analysis showed that there is an effective connectivity from the caudate to the putamen and that this connectivity in reward system was modulated by the effect of the MCC activity so that the putamen activity was enhanced in the case of selfish partner. These results suggest that caudate-putamen connectivity as the reward system can be modulated by selfishness-related activity. Our view would be also that the network modulation system could achieve stable decision-making and action, even if the partner is selfish. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Selfish / Neural reward system / Effective connectivity / Centipede game / fMRI / / / |
Reference Info. |
IEICE Tech. Rep., vol. 113, no. 148, NC2013-19, pp. 23-28, July 2013. |
Paper # |
NC2013-19 |
Date of Issue |
2013-07-12 (NC) |
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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NC2013-19 |
Conference Information |
Committee |
NC MBE |
Conference Date |
2013-07-19 - 2013-07-20 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
The University of Tokushima |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
ME, general |
Paper Information |
Registration To |
NC |
Conference Code |
2013-07-NC-MBE |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Brain activity by partner's selfishness modulates an effective connectivity between reward-related regions |
Sub Title (in English) |
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Selfish |
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Neural reward system |
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Effective connectivity |
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Centipede game |
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fMRI |
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1st Author's Name |
Manabu Shikauchi |
1st Author's Affiliation |
Advanced Telecommunications Research Institute International (ATR) |
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Hiroaki Mizuhara |
2nd Author's Affiliation |
Kyoto University (Kyoto Univ.) |
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Speaker |
Author-1 |
Date Time |
2013-07-20 09:30:00 |
Presentation Time |
25 minutes |
Registration for |
NC |
Paper # |
NC2013-19 |
Volume (vol) |
vol.113 |
Number (no) |
no.148 |
Page |
pp.23-28 |
#Pages |
6 |
Date of Issue |
2013-07-12 (NC) |
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