Evidence map›Paper›PMID 32447409›Full record

ArticleExperimental brain research2020

Modulation of vocal pitch control through high-definition transcranial direct current stimulation of the left ventral motor cortex.

Roozbeh Behroozmand, Karim Johari, Keiko Bridwell, Caroline Hayden, Danielle Fahey, Dirk-Bart den Ouden

Registry-linked trialAbstract read
PubMed Publisher
In one paragraph

Article in Experimental brain research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06544122 (Effect of Transcranial Direct Current Stimulation on the Voice), which is not on this map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
1.4field-weighted citation impact, top 18% 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.

NCT06544122 nacompletednot on this mapstarted 2023, after this paper: background citation

Effect of Transcranial Direct Current Stimulation on the Voice

TypeinterventionalSponsorUniversidade Federal de PernambucoRan2023 to 2024Enrolled16ConditionsVoice and Resonance Disorders, Transcranial Direct Current Stimulation, Voice DisturbanceArmsTranscranial direct current stimulation
3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 29 citations in OpenAlex.

  1. Pooled it
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  6. Review
  7. Targeted neurorehabilitation strategies in post-stroke aphasia.Restorative neurology and neuroscience · 2023
    Review
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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 at 1 institution in 1 country.

Roozbeh BehroozmandSpeech Neuroscience Lab, Department of Communication Sciences and Disorders, University of South Carolina, 915 Greene Street, Columbia, SC, 29208, USA.ORCID http://orcid.org/0000-0002-9104-1101
Karim JohariSpeech Neuroscience Lab, Department of Communication Sciences and Disorders, University of South Carolina, 915 Greene Street, Columbia, SC, 29208, USA.ORCID http://orcid.org/0000-0002-0295-7397
Keiko BridwellNeurolinguistics Lab, Department of Communication Sciences and Disorders, University of South Carolina, 915 Greene Street, Columbia, SC, 29208, USA.
Caroline HaydenSpeech Neuroscience Lab, Department of Communication Sciences and Disorders, University of South Carolina, 915 Greene Street, Columbia, SC, 29208, USA.
Danielle FaheyNeurolinguistics Lab, Department of Communication Sciences and Disorders, University of South Carolina, 915 Greene Street, Columbia, SC, 29208, USA.
Dirk-Bart den OudenNeurolinguistics Lab, Department of Communication Sciences and Disorders, University of South Carolina, 915 Greene Street, Columbia, SC, 29208, USA. denouden@sc.edu.ORCID http://orcid.org/0000-0001-6971-7606
University of South Carolina · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Neural interactions between sensorimotor integration mechanisms play critical roles in voice motor control. We investigated how high-definition transcranial direct current stimulation (HD-tDCS) of the left ventral motor cortex modulates neural mechanisms of sensorimotor integration during voice motor control. HD-tDCS was performed during speech vowel production in an altered auditory feedback (AAF) paradigm in response to upward and downward pitch-shift stimuli. In one experiment, two groups received either anodal or cathodal 2 milliamp (mA) HD-tDCS to the left ventral motor cortex while a third group received sham (placebo) stimulation. In a second experiment, two groups received either 1 mA or 2 mA cathodal HD-tDCS to the left ventral motor cortex. Results of the first experiment indicated that the magnitude of vocal compensation was significantly reduced following anodal and cathodal HD-tDCS only in responses to downward pitch-shift AAF stimuli, with stronger effects associated with cathodal HD-tDCS. However, no such effect was observed following sham stimulation. Results of the second experiment indicate that there is not a differential effect of modulation from 1 mA versus 2 mA. Further, these results replicate the directional finding of the first experiment for vocal compensation in response to downward pitch-shift only. These findings suggest that neurostimulation of the left ventral motor cortex modulates sensorimotor mechanisms underlying voice motor control. We speculate that this effect is associated with the increased contribution of feedforward motor mechanisms, leading to reduced compensatory speech responses to AAF.

Indexed as

Transcranial Direct Current StimulationAdolescentAdultFeedback, SensoryFemaleHumansMaleMotor ActivityMotor CortexSpeechVoiceYoung AdultAuditory feedbackHD-tDCSNeurostimulationSensorimotor integrationVoice motor control

Identifiers

PMID32447409
OpenAlexW3026625606

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.