Perception--action coupling model for human locomotor pointing.

Full 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.

Learn Faster Today Improve your study skills

Author information

Author/s: de Rugy, A (A); Taga, G (G); Montagne, G (G); Buekers, M J (MJ); Laurent, M (M);

Affiliation: Department of Kinesiology, The Pennsylvania State University, 266 Recreation Building, University Park, State College, PA 16802, USA. aug3(-atsign-)psu.edu

Journal and publication information

Publication Type: Journal Article; Research Support, Non-U.S. Gov't

Journal: Biological cybernetics (Biol Cybern), published in Germany. (Language: eng)

Reference: 2002-Aug; vol 87 (issue 2) : pp 141-50

Dates: Created 2002/08/15; Completed 2003/04/09; Revised 2006/11/15;

PMID: 12181588, status: MEDLINE (last retrieval date: 12/26/2008)

Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.

External Links for this article (including full text providers, if available):

Click Electronic Full-text Provider Links to see options for finding the electronic full text links to this article. Note there may be a subscription or fee required for access to the full text. See our FAQ for information on finding FREE full text articles.

This article may also be located in paper journal collections available in many libraries. Use the Journal and Publication Information above to find the full article.

MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Foot - physiology
Humans
Models, Psychological

Models, Psychological
Psychomotor Performance - physiology
Walking - physiology

These are the highest related articles currently in the database:

See 100+ related articles.