ORGANIZATION OF A SIMPLE SYNERGY

  • Latash, Mark (PI)
  • LATASH, MARK (PI)
  • LATASH, MARK (PI)
  • LATASH, MARK L. (PI)
  • LATASH, MARK L. (PI)

Project: Research project

Project Details

Description

DESCRIPTION (Adapted from the Applicant's Abstract): The primary thrust of
this project is to advance our understanding of the notion of synergy as the
basic mechanism for overcoming the notorious redundancy of the
neuro-muscular system for production of voluntary movements. They use the
framework of the equilibrium-point hypothesis, to generalize it for
multi-joint movements, and to suggest an explicit relation among control
variables to individual joints as the basis for a simple synergy. This
definition leads to a number of refutable specific hypotheses that are going
to be addressed. Previous work analyzed kinematics and EMG patterns of the
synergy. To make the next step, they plan to use the results of earlier
studies which involved a method for the reconstruction of the hypothetical
control patterns during single-joint movements and suggest a model
predicting the EMG patterns based on the control signals and actual joint
kinematics. They plan to reconstruct the hypothetical control patterns for
each joint in a variety of conditions using a second-order joint model and
inverse dynamics. Reconstructed patterns will then be used for calculations
of EMG patterns which will be compared to experimental observations. They
plan to apply these methods to unidirectional voluntary movements in a
variety of experimental conditions and under different instructions, to
motor tasks requiring application of isometric force, to motor tasks
involving unexpectedly changed loading conditions, and to whole-arm
movements involving all three major joints.
StatusFinished
Effective start/end date2/1/971/31/17

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