Paper Abstract and Keywords |
Presentation |
2007-07-24 11:00
Information analysis of Monkey AIP neurons during hand manipulation task Takashi Shimizu, Fumihiko Ishida (UEC), Akira Murata (Kinki Univ.), Yutaka Sakaguchi (UEC) NC2007-25 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
We analyzed spike activities of the monkey anterior intraparietal area (AIP) to reveal how the brain represents information related to hand manipulation. During the hand manipulation task, many AIP neurons respond
selectivity to the 3D shape, orientation and size of the objects to be grasped and/or the hand configuration to grasp them. Here, we calculated mutual information (MI) between spike frequency of single neurons and various clusters of 6 objects, and examined how MI changed dependent on different task periods (i.e., fixation, reaching and grasping) for each clustering. MI took peak values in different periods dependent on clustering types: For some neurons, MI for rough clustering had the peaks in the fixation period while MI for fine clustering had the peaks in the reaching or grasping period. This suggests that AIP neurons may represent information relevant to the hand manipulation in a hierarchical manner, that is, different grains of information in different periods. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
information analysis / anterior intraparietal area (AIP) / hand manipulation / / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 107, no. 157, NC2007-25, pp. 1-6, July 2007. |
Paper # |
NC2007-25 |
Date of Issue |
2007-07-17 (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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NC2007-25 |
Conference Information |
Committee |
NC |
Conference Date |
2007-07-24 - 2007-07-25 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Kyoto Univ. |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Statistical Analysis of Spike Signal, etc. |
Paper Information |
Registration To |
NC |
Conference Code |
2007-07-NC |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Information analysis of Monkey AIP neurons during hand manipulation task |
Sub Title (in English) |
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Keyword(1) |
information analysis |
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anterior intraparietal area (AIP) |
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hand manipulation |
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1st Author's Name |
Takashi Shimizu |
1st Author's Affiliation |
University of Electro-Communications (UEC) |
2nd Author's Name |
Fumihiko Ishida |
2nd Author's Affiliation |
University of Electro-Communications (UEC) |
3rd Author's Name |
Akira Murata |
3rd Author's Affiliation |
Kinki University (Kinki Univ.) |
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Yutaka Sakaguchi |
4th Author's Affiliation |
University of Electro-Communications (UEC) |
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Speaker |
Author-1 |
Date Time |
2007-07-24 11:00:00 |
Presentation Time |
30 minutes |
Registration for |
NC |
Paper # |
NC2007-25 |
Volume (vol) |
vol.107 |
Number (no) |
no.157 |
Page |
pp.1-6 |
#Pages |
6 |
Date of Issue |
2007-07-17 (NC) |
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