Paper Abstract and Keywords |
Presentation |
2012-03-30 14:10
The neural representations of absolute and relative subjective value of faces in the human brain Koyo Nakamura, Hideaki Kawabata (Keio Univ.) PRMU2011-274 HIP2011-102 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Recent neurobiological research has demonstrated that the reward system in brain includes fundamental neural processes of value evaluation and preference formation. However, it remains unclear how the reward system in brain encodes reward value. In the present study, we investigated how the subjective value of faces is represented in brain while two faces were sequentially being presented by using fMRI. Dorsolateral prefrontal cortex (DLPFC) responded to a specific reward stimulus without dependence on pairing of another reward stimulus. In contrast, the activation of ventromedial prefrontal cortex (VMPFC) to an identical perceptual stimulus changes depending on the preceding context. The results suggested that neural representation of absolute and relative value of faces might be dissociable in the brain. Nucleus accumbens (NAC) and medial orbitofrontal cortex (mOFC), which are parts of reward system in brain, encoded both value signals of face in the present study, suggesting that both signals might be integrated in these regions. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
preference judgment / reward value / encoding / reward system / fMRI / / / |
Reference Info. |
IEICE Tech. Rep., vol. 111, no. 500, HIP2011-102, pp. 211-216, March 2012. |
Paper # |
HIP2011-102 |
Date of Issue |
2012-03-22 (PRMU, 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) |
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PRMU2011-274 HIP2011-102 |
Conference Information |
Committee |
PRMU HIP |
Conference Date |
2012-03-29 - 2012-03-30 |
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(See Japanese page) |
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Paper Information |
Registration To |
HIP |
Conference Code |
2012-03-PRMU-HIP |
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Japanese |
Title (in Japanese) |
(See Japanese page) |
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(See Japanese page) |
Title (in English) |
The neural representations of absolute and relative subjective value of faces in the human brain |
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preference judgment |
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reward value |
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encoding |
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reward system |
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fMRI |
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1st Author's Name |
Koyo Nakamura |
1st Author's Affiliation |
Keio University (Keio Univ.) |
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Hideaki Kawabata |
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Keio University (Keio Univ.) |
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Speaker |
Author-1 |
Date Time |
2012-03-30 14:10:00 |
Presentation Time |
30 minutes |
Registration for |
HIP |
Paper # |
PRMU2011-274, HIP2011-102 |
Volume (vol) |
vol.111 |
Number (no) |
no.499(PRMU), no.500(HIP) |
Page |
pp.211-216 |
#Pages |
6 |
Date of Issue |
2012-03-22 (PRMU, HIP) |
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