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The effect of the trans-cranial Direct Current Stimulation on the improvement of speech fluency

The effect of the combined treatment method of Delayed Auditory Feedback and trans-cranial Direct Current Stimulation for improvement of speech fluency in adults who stutter

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
IRCT
Registry ID
IRCT20190628044042N1
Enrollment
50
Registered
2019-07-31
Start date
2019-07-06
Completion date
Unknown
Last updated
2019-10-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

stuttering. Adult onset fluency disorder

Interventions

Intervention 1: Intervention group: Participants will receive one anodal tDCS at 1 mA intensity over the left superior temporal gyrus and the cathode tDCS over the orbito-frontal area. tDCS will be de

Sponsors

Iran University of Medical Sciences
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 50 Years

Inclusion criteria

Inclusion criteria: Above 18 years of age Being right handed Having moderate and severe stuttering Not receiving speech therapy in the last month

Exclusion criteria

Exclusion criteria: Receiving speech therapy services out of the study Having epilepsy, mental retardation, hearing loss, central neuron system disorders, and speech motor disorders Taking anti-seizure and sedative medicines

Design outcomes

Primary

MeasureTime frame
Percentage of stuttered syllables. Timepoint: Before intervention, one week and six weeks after intervention. Method of measurement: Percentage of stuttered syllables in speech sample.

Secondary

MeasureTime frame
Changes from baseline in SSI-4 questionnaire. Timepoint: before intervention, one week and six weeks after intervention. Method of measurement: by using SSI-4 questionnaire.;Changes from baseline in OASES questionnaire. Timepoint: before intervention, one week and six weeks after intervention. Method of measurement: by using OASES questionnaire.

Countries

Iran (Islamic Republic of)

Contacts

Public ContactNarges Moin

Iran University of Medical Sciences

moin.narges@gmail.com+98 21 2222 8052

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026