Trial reportBrain and language2017
Investigating the feasibility of using transcranial direct current stimulation to enhance fluency in people who stutter.
Trial report in Brain and language, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
What it found
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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.
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.
Who cites it
13 citing papers in PubMed, 39 citations in OpenAlex.
- Trial
- Failure of tDCS to modulate motor excitability and speech motor learning.Neuropsychologia · 2020Trial
- Boosting Learning Efficacy with Noninvasive Brain Stimulation in Intact and Brain-Damaged Humans.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2019Trial
- Transcranial direct current stimulation over left inferior frontal cortex improves speech fluency in adults who stutter.Brain : a journal of neurology · 2018Trial
- The effects of transcranial direct current stimulation and fluency shaping techniques on enhancing speech fluency in adults who stutter: Protocol for a double-blind randomized controlled trial.Contemporary clinical trials communications · 2025Article
- The Effects of tDCS on Speech Fluency in People Who Stutter: A Narrative Review.The European journal of neuroscience · 2025Review
- Non-Invasive Brain Stimulation and Artificial Intelligence in Communication Neuroprosthetics: A Bidirectional Approach for Speech and Hearing Impairments.Brain sciences · 2025Article
- Contemporary clinical conversations about stuttering: What does brain imaging research mean to clinicians?International journal of speech-language pathology · 2025Article
- The Effects of Theta-Gamma Peak Stimulation on Sensorimotor Learning During Speech Production.Neurobiology of language (Cambridge, Mass.) · 2025Article
- Effects of tDCS on Sound Duration in Patients with Apraxia of Speech in Primary Progressive Aphasia.Brain sciences · 2021Article
- Speech Fluency Improvement in Developmental Stuttering Using Non-invasive Brain Stimulation: Insights From Available Evidence.Frontiers in human neuroscience · 2021Review
- Delayed Auditory Feedback and Transcranial Direct Current Stimulation Treatment for the Enhancement of Speech Fluency in Adults Who Stutter: Protocol for a Randomized Controlled Trial.JMIR research protocols · 2020Article
- Structural connectivity of right frontal hyperactive areas scales with stuttering severity.Brain : a journal of neurology · 2018Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 1 institution in 1 country.
Funding
Abstract
Developmental stuttering is a disorder of speech fluency affecting 1% of the adult population. Long-term reductions in stuttering are difficult for adults to achieve with behavioural therapies. We investigated whether a single session of transcranial direct current stimulation (TDCS) could improve fluency in people who stutter (PWS). In separate sessions, either anodal TDCS (1mA for 20min) or sham stimulation was applied over the left inferior frontal cortex while PWS read sentences aloud. Fluency was induced during the stimulation period by using choral speech, that is, participants read in unison with another speaker. Stuttering frequency during sentence reading, paragraph reading and conversation was measured at baseline and at two outcome time points: immediately after the stimulation period and 1h later. Stuttering was reduced significantly at both outcome time points for the sentence-reading task, presumably due to practice, but not during the paragraph reading or conversation tasks. None of the outcome measures were significantly modulated by anodal TDCS. Although the results of this single-session study showed no significant TDCS-induced improvements in fluency, there were some indications that further research is warranted. We discuss factors that we believe may have obscured the expected positive effects of TDCS on fluency, such as heterogeneity in stuttering severity for the sample and variations across sessions. Consideration of such factors may inform future studies aimed at determining the potential of TDCS in the treatment of developmental stuttering.
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What OpenQuestion holds
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.