TY  - BOOK
AU  - Geed, Shashwati
TI  - Grasp-Based Functional Coupling Between Reach- and Grasp-Related Components of Forelimb Muscle Activity
SN  - 0022-2895
PY  - 2017///
KW  - *Behavior, Animal/ph [Physiology]
KW  - *Biomechanical Phenomena/ph [Physiology]
KW  - *Forelimb/ph [Physiology]
KW  - *Motor Activity/ph [Physiology]
KW  - *Muscle, Skeletal/ph [Physiology]
KW  - Animals
KW  - Electromyography
KW  - Macaca mulatta
KW  - Male
KW  - MedStar National Rehabilitation Network
KW  - Journal Article
N2  - 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
UR  - https://dx.doi.org/10.1080/00222895.2016.1204265
ER  -