Evidence map›Paper›PMID 35263129›Full record

ArticleScience advances2022

Motor cortical output for skilled forelimb movement is selectively distributed across projection neuron classes.

Junchol Park, James W Phillips, Jian-Zhong Guo, Kathleen A Martin, Adam W Hantman, Joshua T Dudman

Abstract read
In one paragraph

Article in Science advances, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

50 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  12. Diversity in Whisking-Related Dynamics of Layer 5 Neurons in the Motor Cortex.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2026
    Article
  13. Motor Cortical Output Integrates Distorted Proprioceptive Feedback.bioRxiv : the preprint server for biology · 2025
    Article
  14. Article
  15. A neural manifold view of the brain.Nature neuroscience · 2025
    Review
  16. Article
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  18. Article
  19. Cerebellar control of targeted tongue movements.The Journal of physiology · 2025
    Article
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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

6 authors.

Junchol ParkJanelia Research Campus, Howard Hughes Medical Institute, Ashburn, VA 20147, USA.ORCID 0000-0002-4739-0793
James W PhillipsJanelia Research Campus, Howard Hughes Medical Institute, Ashburn, VA 20147, USA.
Jian-Zhong GuoJanelia Research Campus, Howard Hughes Medical Institute, Ashburn, VA 20147, USA.ORCID 0000-0002-5836-5921
Kathleen A MartinJanelia Research Campus, Howard Hughes Medical Institute, Ashburn, VA 20147, USA.ORCID 0000-0002-5544-2127
Adam W HantmanJanelia Research Campus, Howard Hughes Medical Institute, Ashburn, VA 20147, USA.ORCID 0000-0002-6563-1423
Joshua T DudmanJanelia Research Campus, Howard Hughes Medical Institute, Ashburn, VA 20147, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The interaction of descending neocortical outputs and subcortical premotor circuits is critical for shaping skilled movements. Two broad classes of motor cortical output projection neurons provide input to many subcortical motor areas: pyramidal tract (PT) neurons, which project throughout the neuraxis, and intratelencephalic (IT) neurons, which project within the cortex and subcortical striatum. It is unclear whether these classes are functionally in series or whether each class carries distinct components of descending motor control signals. Here, we combine large-scale neural recordings across all layers of motor cortex with cell type-specific perturbations to study cortically dependent mouse motor behaviors: kinematically variable manipulation of a joystick and a kinematically precise reach-to-grasp. We find that striatum-projecting IT neuron activity preferentially represents amplitude, whereas pons-projecting PT neurons preferentially represent the variable direction of forelimb movements. Thus, separable components of descending motor cortical commands are distributed across motor cortical projection cell classes.

Identifiers

PMID35263129
PMCPMC8906739

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Registered trials

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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.