Neurological control of head movements: Inverse modeling and electromyographic evidence

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Abstract

Experimentally obtained dynamics of time-optimal, horizontal head rotations have previously been simulated by a sixth order, nonlinear model driven by rectangular control signals. EMG recordings have aspects which differ in detail from the theoretical rectangular pulsed control signal. We have obtained control signals for time-optimal (with triphasic EMG activity) as well as suboptimal horizontal head rotations by means of a newly developed inverse modeling procedure. With experimentally measured dynamical data serving as the input, this procedure inverts the model to produce the neurological control signals driving muscles and plant. The relationships between these controller signals and EMG records should contribute to our understanding of the neurological control of movements.

References (33)

  • G. Cook et al.

    The human eye movement mechanism: Experiments, modeling, and model testing

    Arch. Opthalmol.

    (1968)
  • C. Ghez et al.

    Control of rapid limb movement in the cat. III. Agonist-antagonist coupling

    Exp. Brain Res.

    (1982)
  • B. Hannaford et al.

    Effects of loads on time-optimal head movements: EMG, oblique, and main sequence relationships

  • B. Hannaford et al.

    EMG as controller signal with viscous load

    J. Motor Behavior

    (1984)
  • B. Hannaford et al.

    Control strategies for neurologically ballistic movements

    Proceedings of the 37th ACEMB

    (1984)
  • D.E. Hardt

    Determining muscle forces in the leg during normal human walking—an application and evaluation of optimal methods

    J. Biomech. Engrg.

    (1978)
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    On leave: Department of Electronics Engineering, Kwang Woon University, Seoul, Korea.

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