The Effect of the Non-invasive Brain Stimulation on the Speech Fluency Enhancement
- Conditions
- Stuttering/ Developmental
- Registration Number
- NCT03990168
- Lead Sponsor
- Iran University of Medical Sciences
- Brief Summary
The aim of this study is to determine the effectiveness of concurrent transcranial direct current stimulation (tDCS) and fluency training in adults with developmental stuttering. We examine the severity of stuttering to investigate the effect of treatnment. In the control group the anodal tDCS and DAF will applied on six consecutive days (1 milliampere \[mA\] for 20 mins per day), and the control group will received the sham stimulation and DAF for the same time. The severity of stuttering measured by means of tasks and questionnaires before and after treatment sessions and 6 weeks after intervention.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 50
- History of developmental stuttering
- Participants diagnosed with moderate to severe stuttering
- Right handed
- Native speaker of Farsi
- Speech or language disorders other than stuttering
- Received stuttering treatment within the past year
- Hearing loss
- History of neurological or psychiatric disorders
- History of seizure
- Taking any medication that may affect brain function such as anti-depressants
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Primary Outcome Measures
Name Time Method Mean score of percentage of Stuttered Syllables produced in the speech sample Baselines, immediately post-treatment, 1-week post-treatment, 6-weeks post-treatment Researcher will calculate the Percentage of Stuttered Syllables (SS %) in the speech sample. Lower percentage of Stuttered Syllables represents better outcomes.
- Secondary Outcome Measures
Name Time Method Mean score of the Stuttering Severity Instrument version 4 (SSI-4) Baselines, immediately post-treatment, 1-week post-treatment, 6-weeks post-treatment The Stuttering Severity Instrument (SSI-4) is a standardized measure of stuttering severity consist of of 3 subscales (frequency, duration and physical concomitants) which are summed to give a total score. The maximum total score of the SSI-4 is 56, which corresponds to the highest stuttering severity. So, lower score represents better outcomes.
Mean score of the Overall Assessment of Speakers Experience of Stuttering (OASES) Baselines, immediately post-treatment, 1-week post-treatment, 6-weeks post-treatment The OASES is a standardized assessment to measure the effect of stuttering on a person's life that consists of 4 subscales (general information about speech, your reactions to stuttering, communication in daily situations, quality of life). Each sub-test has a score from 1 to 5 in which the number 1 indicates the least negative impact and number 5 shows the most negative impact. These are combined to give a total impact score between 1 and 5, with 5 representing the highest negative impact on person's life. So, higher score represents better outcomes.
Trial Locations
- Locations (1)
Narges Moin
🇮🇷Tehran, Iran, Islamic Republic of
Narges Moin🇮🇷Tehran, Iran, Islamic Republic of