The formation of trajectories during goal-oriented locomotion in humans. II. A maximum smoothness model

被引:69
作者
Pham, Quang-Cuong
Hicheur, Halim
Arechavaleta, Gustavo
Laumond, Jean-Paul
Berthoz, Alain
机构
[1] Coll France, CNRS, UMR7 152, Lab Physiol Percept Act, F-75005 Paris, France
[2] Coll France, CNRS, LAAS, LPPA, F-75005 Paris, France
关键词
human locomotion; maximum smoothness; minimum jerk; optimization principles; trajectory;
D O I
10.1111/j.1460-9568.2007.05835.x
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Despite the theoretically infinite number of possible trajectories a human may take to reach a distant doorway, we observed that locomotor trajectories corresponding to this task were actually stereotyped, both at the geometric and the kinematic levels. In this paper, we propose a computational model for the formation of human locomotor trajectories. Our model is adapted from smoothness maximization models that have been studied in the context of hand trajectory generation. The trajectories predicted by our model are very similar to the experimentally recorded ones. We discuss the theoretical implications of this result in the context of movement planning and control in humans. In particular, this result supports the hypothesis that common principles, such as smoothness maximization, may govern the generation of very different types of movements (in this case, hand movements and whole-body movements).
引用
收藏
页码:2391 / 2403
页数:13
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