Evidence map›Paper›PMID 17947305›Full record

ReviewThe Journal of physiology2008

Active properties of motoneurone dendrites: diffuse descending neuromodulation, focused local inhibition.

C J Heckman, Allison S Hyngstrom, Michael D Johnson

Abstract readReview
In one paragraph

Review in The Journal of physiology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 74 papers.

0numbers the graph read from it
0cells of the map it votes in
74citing papers in PubMed
–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

74 citing papers in PubMed.

  1. 5-HTThe Journal of physiology · 2025
    Trial
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  3. Serotonin affects movement gain control in the spinal cord.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2014
    Trial
  4. The relationship between the flexion synergy and stretch reflexes in individuals with chronic hemiparetic stroke.IEEE ... International Conference on Rehabilitation Robotics : [proceedings] · 2011
    Trial
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  19. Review
  20. 5-HTThe European journal of neuroscience · 2022
    Article

14 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

3 authors.

C J HeckmanDepartment of Physiology, Northwestern University Feinberg School of Medicine, Chicago, IL 60126, USA. c-heckman@northwestern.edu
Allison S Hyngstrom
Michael D Johnson

Funding

MONOAMINES EFFECTS ON MOTONEURON DISCHARGE PATTERNSR01NS034382 · NINDS · NORTHWESTERN UNIVERSITY AT CHICAGO · PI HECKMAN, CHARLES · 1996 to 2013
$3.9M
NINDS NIH HHS NS034382NINDS NIH HHS R01 NS034382
6 · The paper itself

Abstract

The dendrites of spinal motoneurones are highly active, generating a strong persistent inward current (PIC) that has an enormous impact on processing of synaptic input. The PIC is subject to regulation by descending neuromodulatory systems releasing the monoamines serotonin and noradrenaline. At high monoaminergic drive levels, the PIC dominates synaptic integration, generating an intrinsic dendritic current that is as much as 5-fold larger than the current entering via synapses. Without the PIC, motoneurone excitability is very low. Presumably, this descending control of the synaptic integration via the PIC is used to adjust the excitability (gain) of motoneurones for different motor tasks. A problem with this gain control is that monoaminergic input to the cord is very diffuse, affecting many motor pools simultaneously, probably including both agonists and antagonists. The PIC is, however, exquisitely sensitive to the reciprocal inhibition mediated by length sensitive muscle spindle Ia afferents and Ia interneurones. Reciprocal inhibition is tightly focused, shared only between strict mechanical antagonists, and thus can act to 'sculpt' specific movement patterns out of a background of diffuse neuromodulation. Thus it is likely that motoneurone gain is set by the interaction between diffuse descending neuromodulation and specific and focused local synaptic inhibitory circuits.

Indexed as

AnimalsCatsDendritesHumansInterneuronsMotor NeuronsNeurotransmitter AgentsSynaptic TransmissionNeurotransmitter Agents

Identifiers

PMID17947305
PMCPMC2375668

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.