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PubMed · 12181588

Perception--action coupling model for human locomotor pointing.

A de Rugy·G Taga·G Montagne·M J Buekers·M Laurent
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Abstract

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.

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FootHumansModels, PsychologicalPsychomotor PerformanceWalkingJournal ArticleResearch Support, Non-U.S. Gov't

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A de Rugy, G Taga, G Montagne, M J Buekers, M Laurent. 2002. Perception--action coupling model for human locomotor pointing.. https://doi.org/10.1007/s00422-002-0325-2

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