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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Received: 25 July 2001 / Accepted in revised form: 11 March 2002
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de Rugy, A., Taga, G., Montagne, G. et al. Perception–action coupling model for human locomotor pointing. Biol Cybern 87, 141–150 (2002). https://doi.org/10.1007/s00422-002-0325-2
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DOI: https://doi.org/10.1007/s00422-002-0325-2