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1 DEMAR - Artificial movement and gait restoration LIRMM - Laboratoire d-Informatique de Robotique et de Microélectronique de Montpellier, CRISAM - Inria Sophia Antipolis - Méditerranée 2 IDH - Interactive Digital Humans LIRMM - Laboratoire d-Informatique de Robotique et de Microélectronique de Montpellier 3 EDM - Efficience Déficience Motrice Montpellier 4 IUF - Institut Universitaire de France

Abstract : A closed-loop model with actuator dynamics and sensory feedback has been developed to capture the complex postural behaviors observed in a human head tracking task. In motor-control literature, spindle feedback gains are scaled by the central nervous system to adapt muscle stiffness depending on the postural task. We propose to identify spindle reflex equivalent feedback gains for several target-s frequency values. Comparison with experimental results on human shows the relevance of this modeling, since our musculoskeletal model is able to exhibit reasonably well the behavioral invariants observed in human postures.





Author: Vincent Bonnet - Philippe Fraisse - Nacim Ramdani - Julien Lagarde - Sofiane Ramdani - Benoit G. Bardy -

Source: https://hal.archives-ouvertes.fr/



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