Evidence map›Paper›PMID 27281748›Full record

ArticleJournal of neurophysiology2016

Paired associative transspinal and transcortical stimulation produces plasticity in human cortical and spinal neuronal circuits.

Luke Dixon, Mohamed M Ibrahim, Danielle Santora, Maria Knikou

2 registry-linked trialsOpen access · bronzeAbstract read
In one paragraph

Article in Journal of neurophysiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
2.5field-weighted citation impact, top 11% 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.

NCT04624607 nacompletednot on this mapstarted 2018, after this paper: background citation

Transspinal-Transcortical Paired Stimulation for Neuroplasticity and Recovery After SCI

TypeinterventionalSponsorCollege of Staten Island, the City University of New YorkRan2018 to 2020Enrolled14ConditionsSpinal Cord Injuries, Paraplegia, Spinal, Tetraplegia/TetraparesisArmsTransspinal-transcortical paired-associative stimiulation combined with robotic gait training, Transcortical-transspinal paired-associative stimiulation combined with robotic gait training
NCT04807764 nacompletednot on this mapstarted 2021, after this paper: background citation

Priming With High-Frequency Trans-spinal Stimulation to Augment Locomotor Benefits in Spinal Cord Injury

TypeinterventionalSponsorCity University of New YorkRan2021 to 2024Enrolled14ConditionsSpinal Cord Injuries, Paraplegia, Spinal, Tetraplegia/Tetraparesis, Paraplegia, SpasticArmsStanding transspinal stimulation followed by robotic gait training, Lying transspinal stimulation followed by robotic gait training, Standing sham transspinal stimulation followed by robotic gait training
3 · Its place in the literature

Who cites it

29 citing papers in PubMed, 50 citations in OpenAlex.

  1. Trial
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  4. Timing-dependent synergies between noninvasive motor cortex and spinal cord stimulation in chronic cervical spinal cord injury.Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology · 2025
    Article
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  7. Review
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  11. Review
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  18. Neurostimulation for Stroke Rehabilitation.Frontiers in neuroscience · 2021
    Review
  19. Article
  20. Article
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

4 authors at 2 institutions in 1 country.

Luke DixonDepartment of Physical Therapy, College of Staten Island, New York, New York.
Mohamed M IbrahimDepartment of Physical Therapy, College of Staten Island, New York, New York.
Danielle SantoraDepartment of Physical Therapy, College of Staten Island, New York, New York.
Maria KnikouGraduate Center, City University of New York, New York, New York; and Department of Physical Therapy, College of Staten Island, New York, New York Maria.Knikou@csi.cuny.edu.ORCID 0000-0002-6277-236X
College of Staten Island · USThe Graduate Center, CUNY · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Anatomical, physiological, and functional connectivity exists between the neurons of the primary motor cortex (M1) and spinal cord. Paired associative stimulation (PAS) produces enduring changes in M1, based on the Hebbian principle of associative plasticity. The present study aimed to establish neurophysiological changes in human cortical and spinal neuronal circuits by pairing noninvasive transspinal stimulation with transcortical stimulation via transcranial magnetic stimulation (TMS). We delivered paired transspinal and transcortical stimulation for 40 min at precise interstimulus intervals, with TMS being delivered after (transspinal-transcortical PAS) or before (transcortical-transspinal PAS) transspinal stimulation. Transspinal-transcortical PAS markedly decreased intracortical inhibition, increased intracortical facilitation and M1 excitability with concomitant decreases of motor threshold, and reduced the soleus Hoffmann's reflex (H-reflex) low frequency-mediated homosynaptic depression. Transcortical-transspinal PAS did not affect intracortical circuits, decreased M1 excitability, and reduced the soleus H-reflex-paired stimulation pulses' mediated postactivation depression. Both protocols affected the excitation threshold of group Ia afferents and motor axons. These findings clearly indicate that the pairing of transspinal with transcortical stimulation produces cortical and spinal excitability changes based on the timing interval and functional network interactions between the two associated inputs. This new PAS paradigm may constitute a significant neuromodulation method with physiological impact, because it can be used to alter concomitantly excitability of intracortical circuits, corticospinal neurons, and spinal inhibition in humans.

Indexed as

Transcranial Magnetic StimulationAdultAnalysis of VarianceBiophysicsCerebral CortexElectric StimulationElectromyographyEvoked Potentials, MotorFemaleH-ReflexHumansMaleMotor NeuronsNerve NetNeural PathwaysNeuronal PlasticityH-reflexmotor cortexPASspinal cordTMStransspinal stimulation

Identifiers

PMID27281748
PMCPMC5002441
OpenAlexW2414989580

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.