Evidence map›Paper›PMID 33236981›Full record

ArticleeLife2020

Systematic examination of low-intensity ultrasound parameters on human motor cortex excitability and behavior.

Anton Fomenko, Kai-Hsiang Stanley Chen, Jean-François Nankoo, James Saravanamuttu, Yanqiu Wang, Mazen El-Baba, Xue Xia, Shakthi Sanjana Seerala, Kullervo Hynynen, Andres M Lozano and 1 more

Registry-linked trialOpen access · goldAbstract readComparative Study
In one paragraph

Article in eLife, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05134233 (Investigation of Low-intensity Focused Ultrasound Parameters), which is not on this map. Cited by 74 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
74citing papers in PubMed, 2 pooled it
5.2field-weighted citation impact, top 3% 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.

NCT05134233 nacompletednot on this mapstarted 2022, after this paper: background citation

Investigation of Low-intensity Focused Ultrasound Parameters

TypeinterventionalSponsorVirginia Polytechnic Institute and State UniversityRan2022 to 2024Enrolled23ConditionsDevelopment of LIFU for Clinical PurposesArmsLow-intensity Focused Ultrasound
3 · Its place in the literature

Who cites it

74 citing papers in PubMed, 2 syntheses or guidelines pooled it, 155 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Transcranial Ultrasound Stimulation of Internal Globus Pallidus Region and Motor Cortex in Parkinson's Disease.Movement disorders : official journal of the Movement Disorder Society · 2026
    Trial
  4. Article
  5. Article
  6. Focused Ultrasound for the Treatment of Circuit and Molecular Pathology in Parkinson's Disease.Movement disorders : official journal of the Movement Disorder Society · 2026
    Review
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  11. Review
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  13. Review
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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

11 authors at 3 institutions in 2 countries.

Anton Fomenko *Krembil Research Institute, University Health Network, Toronto, Canada.ORCID 0000-0003-4131-6784
Kai-Hsiang Stanley Chen *Krembil Research Institute, University Health Network, Toronto, Canada.
Jean-François NankooKrembil Research Institute, University Health Network, Toronto, Canada.
James SaravanamuttuKrembil Research Institute, University Health Network, Toronto, Canada.
Yanqiu WangKrembil Research Institute, University Health Network, Toronto, Canada.
Mazen El-BabaKrembil Research Institute, University Health Network, Toronto, Canada.
Xue XiaDivision of Neurology, Department of Medicine, University of Toronto, Toronto, Canada.
Shakthi Sanjana SeeralaSunnybrook Research Institute, Toronto, Canada.
Kullervo HynynenSunnybrook Research Institute, Toronto, Canada.
Andres M LozanoKrembil Research Institute, University Health Network, Toronto, Canada.
Robert ChenKrembil Research Institute, University Health Network, Toronto, Canada.
University Health Network · CASunnybrook Hospital · CAUniversity of Toronto · CA

Funding

CIHR FDN 154292NSERC RGPIN-2020-04176
6 · The paper itself

Abstract

Low-intensity transcranial ultrasound (TUS) can non-invasively modulate human neural activity. We investigated how different fundamental sonication parameters influence the effects of TUS on the motor cortex (M1) of 16 healthy subjects by probing cortico-cortical excitability and behavior. A low-intensity 500 kHz TUS transducer was coupled to a transcranial magnetic stimulation (TMS) coil. TMS was delivered 10 ms before the end of TUS to the left M1 hotspot of the first dorsal interosseous muscle. Varying acoustic parameters (pulse repetition frequency, duty cycle, and sonication duration) on motor-evoked potential amplitude were examined. Paired-pulse measures of cortical inhibition and facilitation, and performance on a visuomotor task was also assessed. TUS safely suppressed TMS-elicited motor cortical activity, with longer sonication durations and shorter duty cycles when delivered in a blocked paradigm. TUS increased GABA

Indexed as

Evoked Potentials, MotorMotor SkillsMuscle ContractionNeural InhibitionTranscranial Magnetic StimulationUltrasonic WavesAdultDouble-Blind MethodFemaleHealthy VolunteersHumansMagnetic Resonance ImagingMaleMiddle AgedMotor CortexMuscle, Skeletalbrain stimulationfocused ultrasoundhumanneuromodulationneurosciencenoninvasive brain stimulationtranscranial magnetic stimulationtranscranial ultrasound

Identifiers

PMID33236981
PMCPMC7728443
OpenAlexW3109569610

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.