WEKO3
アイテム
Feedforward impedance control efficiently reduce motor variability
http://hdl.handle.net/10228/3254
http://hdl.handle.net/10228/3254e2d3fa73-2204-4514-a9fe-69b1148d983b
| 名前 / ファイル | ライセンス | アクション |
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feedforward.pdf (3.3 MB)
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| アイテムタイプ | 学術雑誌論文 = Journal Article(1) | |||||||||||||
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| 公開日 | 2009-12-21 | |||||||||||||
| 資源タイプ | ||||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||
| 資源タイプ | journal article | |||||||||||||
| タイトル | ||||||||||||||
| タイトル | Feedforward impedance control efficiently reduce motor variability | |||||||||||||
| 言語 | en | |||||||||||||
| 言語 | ||||||||||||||
| 言語 | eng | |||||||||||||
| 著者 |
Osu, Rieko
× Osu, Rieko× Morishige, Ken-ichi× 宮本, 弘之
WEKO
8076
× Kawato, Mitsuo |
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| 抄録 | ||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||
| 内容記述 | Despite the existence of neural noise, which leads variability in motor commands, the central nervous system can effectively reduce movement variance at the end effector to meet task requirements. Although online correction based on feedback information is essential for reducing error, feedforward impedance control is another way to regulate motor variability. This Update Article reviews key studies examining the relation between task constraints and impedance control for human arm movement. When a smaller reaching target is given as a task constraint, flexor and extensor muscles are co-activated, and positional variance is decreased around the task constraint. Trial-by-trial muscle activations revealed no on-line feedback correction, indicating that humans are able to regulate their impedance in advance. These results demonstrate that not only on-line feedback correction, but also feedforward impedance control, helps reduce the motor variability caused by internal noise to realize dexterous movements of human arms. A computational model of movement planning considering the presence of signal-dependent noise provides a unifying framework that potentially accounts for optimizing impedance to maximize accuracy. A recently proposed learning algorism formulated as a V-shaped learning function explains how the central nervous system acquires impedance to optimize accuracy as well as stability and efficiency. | |||||||||||||
| 言語 | en | |||||||||||||
| 書誌情報 |
en : Neuroscience Research 巻 65, 号 1, p. 6-10, 発行日 2009-09-01 |
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| 出版社 | ||||||||||||||
| 出版者 | Elsevier | |||||||||||||
| DOI | ||||||||||||||
| 関連タイプ | isVersionOf | |||||||||||||
| 識別子タイプ | DOI | |||||||||||||
| 関連識別子 | https://doi.org/10.1016/j.neures.2009.05.012 | |||||||||||||
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| 収録物識別子タイプ | PISSN | |||||||||||||
| 収録物識別子 | 0168-0102 | |||||||||||||
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| 収録物識別子タイプ | EISSN | |||||||||||||
| 収録物識別子 | 1872-8111 | |||||||||||||
| 著作権関連情報 | ||||||||||||||
| 権利情報 | Copyright © 2009 Elsevier Ireland Ltd and the Japan Neuroscience Society All rights reserved. | |||||||||||||
| キーワード | ||||||||||||||
| 主題Scheme | Other | |||||||||||||
| 主題 | Human arm movement | |||||||||||||
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| 主題Scheme | Other | |||||||||||||
| 主題 | Stiffness | |||||||||||||
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| 主題Scheme | Other | |||||||||||||
| 主題 | Learning | |||||||||||||
| キーワード | ||||||||||||||
| 主題Scheme | Other | |||||||||||||
| 主題 | Signal dependent noise | |||||||||||||
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| 主題Scheme | Other | |||||||||||||
| 主題 | Feedback | |||||||||||||
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| 主題Scheme | Other | |||||||||||||
| 主題 | EMG | |||||||||||||
| 出版タイプ | ||||||||||||||
| 出版タイプ | AM | |||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||||||||
| 査読の有無 | ||||||||||||||
| 値 | yes | |||||||||||||
| 業績ID | ||||||||||||||
| 値 | 848E19AAE25FE0F849257688003AA7D2 | |||||||||||||
