| Paper Abstract and Keywords |
| Presentation |
2006-03-16 11:25
Analysis on activity of dopamine neurons encoding prediction of uncertain reward
Hiroki Takahashi, Hideaki Itoh, Shigemi Sawa, Kiyohiko Nakamura (Tokyo Institute of Technology) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
Reinforcement learning is one of the machine learning, and is proposed as a computational model of conditioning. It was reported that activity of dopamine neurons in midbrain may encode temporal difference error in reinforcement learning. Recently, electrophysiology research has shown that dopamine neurons respond to uncertain reward. We study the activity of dopamine neurons responding to uncertain reward with computational model. Reinforcement learning is suggested to be implemented with basal ganglia. We show that the activity is reproduced by an asymmetric learning in which the negative prediction error is assumed to be more important than the positive prediction error. Furthermore, this model partially reproduces Prospect Theory which explains the economical features of human behavior. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
dopamine / Prospect Theory / TD learning / / / / / |
| Reference Info. |
IEICE Tech. Rep., vol. 105, no. 658, NC2005-129, pp. 25-30, March 2006. |
| Paper # |
NC2005-129 |
| Date of Issue |
2006-03-09 (NC) |
| ISSN |
Print edition: ISSN 0913-5685 |
| Download PDF |
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| Conference Information |
| Committee |
NC |
| Conference Date |
2006-03-15 - 2006-03-17 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Tamagawa University |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
General |
| Paper Information |
| Registration To |
NC |
| Conference Code |
2006-03-NC |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Analysis on activity of dopamine neurons encoding prediction of uncertain reward |
| Sub Title (in English) |
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| Keyword(1) |
dopamine |
| Keyword(2) |
Prospect Theory |
| Keyword(3) |
TD learning |
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| 1st Author's Name |
Hiroki Takahashi |
| 1st Author's Affiliation |
Tokyo Institute of Technology (Tokyo Institute of Technology) |
| 2nd Author's Name |
Hideaki Itoh |
| 2nd Author's Affiliation |
Tokyo Institute of Technology (Tokyo Institute of Technology) |
| 3rd Author's Name |
Shigemi Sawa |
| 3rd Author's Affiliation |
Tokyo Institute of Technology (Tokyo Institute of Technology) |
| 4th Author's Name |
Kiyohiko Nakamura |
| 4th Author's Affiliation |
Tokyo Institute of Technology (Tokyo Institute of Technology) |
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| Speaker |
Author-1 |
| Date Time |
2006-03-16 11:25:00 |
| Presentation Time |
25 minutes |
| Registration for |
NC |
| Paper # |
NC2005-129 |
| Volume (vol) |
vol.105 |
| Number (no) |
no.658 |
| Page |
pp.25-30 |
| #Pages |
6 |
| Date of Issue |
2006-03-09 (NC) |