| Presentation | 1996/7/24 THE CURVATURE OF HAND PATHS IN MULTI-JOINT REACHING MOVEMENTS: DEPENDENCE ON ARM POSTURE Eri Nakano, Hiroshi Imamizu, Rieko Osu, Yoji Uno, Mitsuo Kawato, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We examined if the curvature of a trajectory quantitatively varies with arm posture when humans make point ot point multi-joint reaching movements on a horizontal plane. It has been discussed whether trajectories of the human arm are planned in extrinsic space or in intrinsic space. Hand paths planned in the former are predicted to be always straight, while those in the latter are gentlly curved. In the previous studies, it has been reported that actual hand paths tended to significantly curve for some specific arm postures, movement distances, and movement durations. We have extended the previous studies using various initial and final positions located within a workspace. The trajectory curvature was finearly estimated from elbow and shoulder joint angles at initial and final positions. These results suggest that trajectory curvature depends on arm posture and is in accordance with predictions made under planning in the intrinsic space, rather than in the extrinsic space. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | multi-joint reaching movement / intrinsic space / extrinsic space / linear regression |
| Paper # | NC96-29 |
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| Conference Information | |
| Committee | NC |
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| Conference Date | 1996/7/24(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Chair | |
| Vice Chair | |
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| Paper Information | |
| Registration To | Neurocomputing (NC) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | THE CURVATURE OF HAND PATHS IN MULTI-JOINT REACHING MOVEMENTS: DEPENDENCE ON ARM POSTURE |
| Sub Title (in English) | |
| Keyword(1) | multi-joint reaching movement |
| Keyword(2) | intrinsic space |
| Keyword(3) | extrinsic space |
| Keyword(4) | linear regression |
| 1st Author's Name | Eri Nakano |
| 1st Author's Affiliation | ATR Human Information Processing Res. Labs.:Graduate School of Science and Technol., Kobe Univ.() |
| 2nd Author's Name | Hiroshi Imamizu |
| 2nd Author's Affiliation | ATR Human Information Processing Res. Labs. |
| 3rd Author's Name | Rieko Osu |
| 3rd Author's Affiliation | ATR Human Information Processing Res. Labs. |
| 4th Author's Name | Yoji Uno |
| 4th Author's Affiliation | Department of Information and Computer Sciences., Toyohashi Univ. of Technol. |
| 5th Author's Name | Mitsuo Kawato |
| 5th Author's Affiliation | ATR Human Information Processing Res. Labs. |
| Date | 1996/7/24 |
| Paper # | NC96-29 |
| Volume (vol) | vol.96 |
| Number (no) | 178 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |