Trajectory planning of human reaching movements for a time-minimizing task
説明
We investigate trajectory planning for a time minimizing task in human reaching movements. Using computer simulation, we found that the minimum movement-time trajectory is considerably concave toward a body and its velocity profile has two peaks. In psychophysical experiments, we observed that the subjects generated roughly straight hand paths with bell-shaped velocity profiles in the time-minimizing task. These features can be reproduced by the minimum commanded torque change criterion that requires the smoothness of motor command. We confirmed that the subjects could generate minimum movement-time trajectories when given a via-point and some instructions. The experimental results suggest that the brain cannot calculate the optimal trajectory according to the performance index except for the smoothness.
収録刊行物
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- IEEE SMC'99 Conference Proceedings. 1999 IEEE International Conference on Systems, Man, and Cybernetics (Cat. No.99CH37028)
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IEEE SMC'99 Conference Proceedings. 1999 IEEE International Conference on Systems, Man, and Cybernetics (Cat. No.99CH37028) 6 1039-1044, 2003-01-20
IEEE