Evidence map›Paper›PMID 28739958›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2017

Neural basis for hand muscle synergies in the primate spinal cord.

Tomohiko Takei, Joachim Confais, Saeka Tomatsu, Tomomichi Oya, Kazuhiko Seki

Registry-linked trialOpen access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04154514 (A Wearable for Post-stroke Rehabilitative Multi-muscle Stimulation Inspired by the Natural Organization of Neuromuscular Control), which is not on this map. Cited by 82 papers.

0numbers the graph read from it
0cells of the map it votes in
82citing papers in PubMed
7.6field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT04154514 nacompletednot on this mapstarted 2019, after this paper: background citation

A Wearable for Post-stroke Rehabilitative Multi-muscle Stimulation Inspired by the Natural Organization of Neuromuscular Control

TypeinterventionalSponsorChinese University of Hong KongRan2019 to 2025Enrolled53ConditionsChronic StrokeArmsA functional electrical stimulation device for post-stroke rehabilitation
3 · Its place in the literature

Who cites it

82 citing papers in PubMed, 172 citations in OpenAlex.

  1. Trial
  2. Neuromotor modules revealed by direct electrical stimulation of the human primary motor cortex.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  7. Autogenic spinal excitatory circuit ensures skilled hand movements in primates.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  19. Muscle synergies in upper limb stroke rehabilitation: a scoping review.European journal of physical and rehabilitation medicine · 2024
    Article
  20. The Volitional Control of Individual Motor Units Is Constrained within Low-Dimensional Neural Manifolds by Common Inputs.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
    Article

22 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Tomohiko TakeiDepartment of Neurophysiology, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo 187-8502, Japan; tomohiko.takei@queensu.ca seki@ncnp.go.jp.ORCID 0000-0002-6429-5798
Joachim ConfaisDepartment of Neurophysiology, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo 187-8502, Japan.
Saeka TomatsuDepartment of Neurophysiology, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo 187-8502, Japan.
Tomomichi OyaDepartment of Neurophysiology, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo 187-8502, Japan.
Kazuhiko SekiDepartment of Neurophysiology, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo 187-8502, Japan; tomohiko.takei@queensu.ca seki@ncnp.go.jp.
National Center of Neurology and Psychiatry · JPJapan Science and Technology Agency · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Grasping is a highly complex movement that requires the coordination of multiple hand joints and muscles. Muscle synergies have been proposed to be the functional building blocks that coordinate such complex motor behaviors, but little is known about how they are implemented in the central nervous system. Here we demonstrate that premotor interneurons (PreM-INs) in the primate cervical spinal cord underlie the spatiotemporal patterns of hand muscle synergies during a voluntary grasping task. Using spike-triggered averaging of hand muscle activity, we found that the muscle fields of PreM-INs were not uniformly distributed across hand muscles but rather distributed as clusters corresponding to muscle synergies. Moreover, although individual PreM-INs have divergent activation patterns, the population activity of PreM-INs reflects the temporal activation of muscle synergies. These findings demonstrate that spinal PreM-INs underlie the muscle coordination required for voluntary hand movements in primates. Given the evolution of neural control of primate hand functions, we suggest that spinal premotor circuits provide the fundamental coordination of multiple joints and muscles upon which more fractionated control is achieved by superimposed, phylogenetically newer, pathways.

Indexed as

AnimalsFemaleHandHand StrengthMacaca mulattaMaleMuscle, SkeletalNerve NetSpinal Cordmotor controlmuscle synergiesnonhuman primateprecision gripspinal interneurons

Identifiers

PMID28739958
PMCPMC5559022
OpenAlexW2738335006

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.