Perception-action coupling model for human locomotor pointing
Perception-action coupling model for human locomotor pointing
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DOI：
10.1007/s00422-002-0325-2
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发表时间：
2002-08-01
影响因子：
1.9
通讯作者：
Laurent, M
中科院分区：
文献类型：
--
作者：
de Rugy, A;Taga, G;Laurent, M
人类如何在行走过程中实现脚的精确定位，例如，到达楼梯的第一步？我们在可视化集成级别解决了这个问题。基于所需的适应的光学规格，设计了一个动力系统模型的视觉控制的人类运动指向的脚在地板上的可见目标在行走过程中的定位。视觉整合包括将光学信息直接链接到运动指令，该运动指令根据运动模式生成的持续动态来具体调节步长。运动的适应出现在基于时间信息而不是基于运动的前馈规划的感知-动作耦合类型的控制中。该模型再现了人类运动指向的实验结果。
How do humans achieve the precise positioning of the feet during walking, for example, to reach the first step of a stairway? We addressed this question at the visuomotor integration level. Based on the optical specification of the required adaptation, a dynamical system model of the visuomotor control of human locomotor pointing was devised for the positioning of a foot on a visible target on the floor during walking. Visuomotor integration consists of directly linking optical information to a motor command that specifically modulates step length in accordance with the ongoing dynamics of locomotor pattern generation. The adaptation of locomotion emerges from a perception-action coupling type of control based on temporal information rather than on feedforward planning of movements. The proposed model reproduces experimental results obtained for human locomotor pointing.