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American Physiological Society

Stability of hand force production. I. Hand level control variables and multifinger synergies

Overview of attention for article published in Journal of Neurophysiology, September 2017
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  • In the top 25% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (81st percentile)
  • High Attention Score compared to outputs of the same age and source (92nd percentile)

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Title
Stability of hand force production. I. Hand level control variables and multifinger synergies
Published in
Journal of Neurophysiology, September 2017
DOI 10.1152/jn.00485.2017
Pubmed ID
Authors

Sasha Reschechtko, Mark L Latash

Abstract

We combined the theory of neural control of movement with referent coordinates and the uncontrolled manifold hypothesis to explore synergies stabilizing the hand action in accurate four-finger pressing tasks. In particular, we tested a hypothesis on two classes of synergies - those among the four fingers and those within a pair of control variables - stabilizing hand action under visual feedback and disappearing without visual feedback. Subjects performed four-finger total force and moment production tasks under visual feedback; the feedback was later partially or completely removed. The "inverse piano" device was used to lift and lower the fingers smoothly at the beginning and at the end of each trial. These data were used to compute pairs of hypothetical control variables. Inter-trial analysis of variance within the finger force space was used to quantify multi-finger synergies stabilizing both force and moment. A data permutation method was used to quantify synergies among control variables. Under visual feedback, synergies in the spaces of finger forces and hypothetical control variables were found to stabilize total force. Without visual feedback, the subjects showed a force drift to lower magnitudes and a moment drift toward pronation. This was accompanied by disappearance of the four-finger synergies and strong attenuation of the control-variable synergies. The indices of the two types of synergies correlated with each other. The findings are interpreted within the scheme with multiple levels of abundant variables.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 234 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 234 100%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 15 6%
Student > Master 6 3%
Professor 3 1%
Researcher 3 1%
Student > Bachelor 2 <1%
Other 6 3%
Unknown 199 85%
Readers by discipline Count As %
Medicine and Dentistry 8 3%
Engineering 8 3%
Neuroscience 6 3%
Sports and Recreations 4 2%
Psychology 3 1%
Other 4 2%
Unknown 201 86%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 11. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 13 September 2018.
All research outputs
#3,410,871
of 25,382,440 outputs
Outputs from Journal of Neurophysiology
#713
of 8,424 outputs
Outputs of similar age
#59,645
of 323,485 outputs
Outputs of similar age from Journal of Neurophysiology
#9
of 117 outputs
Altmetric has tracked 25,382,440 research outputs across all sources so far. Compared to these this one has done well and is in the 86th percentile: it's in the top 25% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 8,424 research outputs from this source. They receive a mean Attention Score of 4.8. This one has done particularly well, scoring higher than 91% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 323,485 tracked outputs that were published within six weeks on either side of this one in any source. This one has done well, scoring higher than 81% of its contemporaries.
We're also able to compare this research output to 117 others from the same source and published within six weeks on either side of this one. This one has done particularly well, scoring higher than 92% of its contemporaries.