| Paper Abstract and Keywords |
| Presentation |
2006-03-17 13:50
A study on optimality of motor commands
-- task optimization and sparse representation --
Yutaka Sakaguchi (Univ. Electro-Communications) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
The present report addresses the problem on motor command representation. Based on the framework where every motor command pattern is represented by a weighted-sum of base patterns with time-shifts, the author discusses the optimality of parameters (weights and time-shifts) and basis, in relation to the recent feature extraction model of visual system. Included topics are synergy decomposition, task optimization and sparse coding. Based on this disuccsion, the author proposes a new optimization criterion consisting of a "task optimization" term and a "parameter preference" term, and points out that this criterion can be utilized for solving the motor planning problem and for explaining characteristic features of human motor behavior. A computer-simulated experiment
using a single-joint arm model shows that the generated trajectory satisfies Fitts’law, supporting the above view. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
motor representation / basis extraction / synergy decomposition / task optimization / sparse coding / motor planning / / |
| Reference Info. |
IEICE Tech. Rep., vol. 105, no. 659, NC2005-158, pp. 43-48, March 2006. |
| Paper # |
NC2005-158 |
| Date of Issue |
2006-03-10 (NC) |
| ISSN |
Print edition: ISSN 0913-5685 |
| Download PDF |
|
| 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) |
A study on optimality of motor commands |
| Sub Title (in English) |
task optimization and sparse representation |
| Keyword(1) |
motor representation |
| Keyword(2) |
basis extraction |
| Keyword(3) |
synergy decomposition |
| Keyword(4) |
task optimization |
| Keyword(5) |
sparse coding |
| Keyword(6) |
motor planning |
| Keyword(7) |
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| Keyword(8) |
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| 1st Author's Name |
Yutaka Sakaguchi |
| 1st Author's Affiliation |
University of Electo-Communications (Univ. Electro-Communications) |
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| Speaker |
Author-1 |
| Date Time |
2006-03-17 13:50:00 |
| Presentation Time |
25 minutes |
| Registration for |
NC |
| Paper # |
NC2005-158 |
| Volume (vol) |
vol.105 |
| Number (no) |
no.659 |
| Page |
pp.43-48 |
| #Pages |
6 |
| Date of Issue |
2006-03-10 (NC) |