Journal article
Shashwati Geed, P. V. van Kan
Journal of Motor Behavior, 2017
Journal of Motor Behavior, 2017
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DOI
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APA
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Geed, S., & van Kan, P. V. (2017). Grasp-Based Functional Coupling Between Reach- and Grasp-Related Components of Forelimb Muscle Activity. Journal of Motor Behavior.
Chicago/Turabian
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Geed, Shashwati, and P. V. van Kan. “Grasp-Based Functional Coupling Between Reach- and Grasp-Related Components of Forelimb Muscle Activity.” Journal of Motor Behavior (2017).
MLA
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Geed, Shashwati, and P. V. van Kan. “Grasp-Based Functional Coupling Between Reach- and Grasp-Related Components of Forelimb Muscle Activity.” Journal of Motor Behavior, 2017.
BibTeX Click to copy
@article{shashwati2017a,
title = {Grasp-Based Functional Coupling Between Reach- and Grasp-Related Components of Forelimb Muscle Activity},
year = {2017},
journal = {Journal of Motor Behavior},
author = {Geed, Shashwati and van Kan, P. V.}
}
Abstract
ABSTRACT How are appropriate combinations of forelimb muscles selected during reach-to-grasp movements in the presence of neuromotor redundancy and important task-related constraints? The authors tested whether grasp type or target location preferentially influence the selection and synergistic coupling between forelimb muscles during reach-to-grasp movements. Factor analysis applied to 14–20 forelimb electromyograms recorded from monkeys performing reach-to-grasp tasks revealed 4–6 muscle components that showed transport/preshape- or grasp-related features. Weighting coefficients of transport/preshape-related components demonstrated strongest similarities for reaches that shared the same grasp type rather than the same target location. Scaling coefficients of transport/preshape- and grasp-related components showed invariant temporal coupling. Thus, grasp type influenced strongly both transport/preshape- and grasp-related muscle components, giving rise to grasp-based functional coupling between forelimb muscles.