Healthy AdultsNCT05918679
The Brain Processes Underlying Speech Motor Learning and Speech Production
A study testing Effects of speech variability on speech motor learning, Effects of error-detection training on speech motor learning and Contributions of error awareness to speech motor learning in people with Healthy Adults, run by Arizona State University at 1 site in United States.
Trial summary
The aim of this research is to develop protocols that selectively target and improve speech-motor learning processes. Participants will be asked to name pictures, read words/sentences, and listen to sounds while their speech signals will be collected during the study. Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Healthy Adults
- What is being tested?
- Effects of speech variability on speech motor learning, Effects of error-detection training on speech motor learning and Contributions of error awareness to speech motor learning
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 510 participants
- Where
- 1 siteUnited States
- Study dates
- 1 Jun 2023to 31 Aug 2027
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- 18 years and older
- native speaker of American English
- normal (age-appropriate) binaural pure-tone hearing threshold
- not taking medications affecting sensorimotor functioning
- no current or history of communication, neurological, or psychological disorders
Who cannot join
None listed.
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
United States1 site, 1 recruiting
- Recruiting
Arizona State University
Tempe, Arizona, 85287
Ayoub Daliri, 480-727-8397, ayoub.daliri@asu.edu
About this study
Official title: Improving Speech Motor Learning Processes Using Augmented Behavioral Interventions
The aim of this research is to develop protocols that selectively target and improve speech-motor learning processes. Participants will be asked to name pictures, read words/sentences, and listen to sounds while their speech signals will be collected during the study.
- Conditions
- Healthy Adults
- Being tested
- Effects of speech variability on speech motor learning, Effects of error-detection training on speech motor learning, Contributions of error awareness to speech motor learning, Enhancing auditory-to-motor mapping with augmented visual feedback, Effects of enhanced auditory-motor awareness on speech motor learning
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Effects of speech variability on speech motor learningBehavioural
This intervention will examine whether reducing normal variability of speech could improve error detection and speech motor learning. We will design training tasks to change subjects' speech variability. We will train subjects to decrease/decrease their speech variability. Upon completing the training tasks, subjects will complete a motor learning task.
Effects of error-detection training on speech motor learningBehavioural
This intervention will examine whether improving subjects' ability to detect and estimate auditory perturbation could improve speech motor learning. For this purpose, we will design training tasks to change subjects' estimation of the perturbation magnitude. After completing the training tasks, subjects will complete the motor learning task.
Contributions of error awareness to speech motor learningBehavioural
This intervention will examine the contributions of error awareness to speech motor learning. Subjects will produce a target word while receiving perturbed auditory feedback with different magnitudes. Subjects will be trained to indicate the magnitude of the error they perceived with or without visual feedback.
Enhancing auditory-to-motor mapping with augmented visual feedbackBehavioural
This intervention will determine the contributions of enhanced auditory-to-motor mappings to speech motor learning. We will design training tasks in which we will use visual feedback to provide feedback regarding subjects' accuracy of auditory-to-motor mapping.
Effects of enhanced auditory-motor awareness on speech motor learningBehavioural
In this intervention, subjects will be trained to control their articulators more accurately and be more aware of their articulators' position and their auditory consequences. After the training tasks, subjects will complete a motor learning task.
| Study group | Role | What they receive |
|---|---|---|
| Healthy Adults group 1 | Experimental | Not described Receives: Behavioral: Effects of speech variability on speech motor learning |
| Healthy Adults group 2 | Experimental | Not described Receives: Behavioral: Effects of error-detection training on speech motor learning |
| Healthy Adults group 3 | Experimental | Not described Receives: Behavioral: Contributions of error awareness to speech motor learning |
| Healthy Adults group 4 | Experimental | Not described Receives: Behavioral: Enhancing auditory-to-motor mapping with augmented visual feedback |
| Healthy Adults group 5 | Experimental | Not described Receives: Behavioral: Effects of enhanced auditory-motor awareness on speech motor learning |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change in speech output in response to previously experienced auditory errors
In each trial, participants will experience an auditory error while they produce speech (e.g., they may say "head" but hear "had"). Participants' speech will be measured in each trial. The investigators will measure how the participants' speech changes due to auditory errors experienced in previous trials.
Measured: within each session of the study that may last up to 2 hours
Change In Speech Output Immidiately After Hearing Auditory Errors
In each trial, participants will experience an auditory error while they produce speech (e.g., they may say "head" but hear "had"). The investigators will measure how the participants' speech changes due to auditory errors that they experience in the current trial.
Measured: within each session of the study that may last up to 2 hours
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted26 Jun 2023
- Study start1 Jun 2023
- Primary completion31 Aug 2027 (estimated)
- Study completion31 Aug 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Healthy AdultsStudies of the same condition, open and under way.
- More trials run by Arizona State UniversityThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Basic science
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
- Who is masked
- Participant, Outcomes assessor
- Enrolment
- 510 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Arizona State University
- Sponsor type
- University, hospital or other
- Collaborators
- National Institute on Deafness and Other Communication Disorders (NIDCD)
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05918679
- Sponsor's protocol ID
- STUDY00017657
- Other IDs
- R01DC019905
- Status last verified
- Jul 2026
- First submitted
- 5 Jun 2023
- Last updated
- 8 Jul 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 8 Jul 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Improving Speech Motor Learning Processes Using Augmented Behavioral Interventions
- ClinicalTrials.gov ID
- NCT05918679
- Acronym / sponsor ID
- STUDY00017657
- Conditions
- Healthy Adults
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 510 participants (estimated)
- Lead sponsor
- Arizona State UniversityUniversity, hospital or other
- Collaborators
- National Institute on Deafness and Other Communication Disorders (NIDCD)
- Study start
- 1 Jun 2023 (actual)
- Primary completion
- 31 Aug 2027 (estimated)
- Study completion
- 31 Aug 2027 (estimated)
- First posted
- 26 Jun 2023 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The aim of this research is to develop protocols that selectively target and improve speech-motor learning processes. Participants will be asked to name pictures, read words/sentences, and listen to sounds while their speech signals will be collected during the study.
Study design
- Primary purpose
- Basic science
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, outcomes assessor)
- Number of arms
- 5
| Arm | Type | Receives |
|---|---|---|
| Healthy Adults group 1 | Experimental | Behavioral: Effects of speech variability on speech motor learning |
| Healthy Adults group 2 | Experimental | Behavioral: Effects of error-detection training on speech motor learning |
| Healthy Adults group 3 | Experimental | Behavioral: Contributions of error awareness to speech motor learning |
| Healthy Adults group 4 | Experimental | Behavioral: Enhancing auditory-to-motor mapping with augmented visual feedback |
| Healthy Adults group 5 | Experimental | Behavioral: Effects of enhanced auditory-motor awareness on speech motor learning |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (5 listed)
- 18 years and older
- native speaker of American English
- normal (age-appropriate) binaural pure-tone hearing threshold
- not taking medications affecting sensorimotor functioning
- no current or history of communication, neurological, or psychological disorders
Key exclusion criteria (0 listed)
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Effects of speech variability on speech motor learningThis intervention will examine whether reducing normal variability of speech could improve error detection and speech motor learning. We will design training tasks to change subjects' speech variability. We will train subjects to decrease/decrease their speech variability. Upon completing the training tasks, subjects will complete a motor learning task. | Behavioural | Healthy Adults group 1 |
| Effects of error-detection training on speech motor learningThis intervention will examine whether improving subjects' ability to detect and estimate auditory perturbation could improve speech motor learning. For this purpose, we will design training tasks to change subjects' estimation of the perturbation magnitude. After completing the training tasks, subjects will complete the motor learning task. | Behavioural | Healthy Adults group 2 |
| Contributions of error awareness to speech motor learningThis intervention will examine the contributions of error awareness to speech motor learning. Subjects will produce a target word while receiving perturbed auditory feedback with different magnitudes. Subjects will be trained to indicate the magnitude of the error they perceived with or without visual feedback. | Behavioural | Healthy Adults group 3 |
| Enhancing auditory-to-motor mapping with augmented visual feedbackThis intervention will determine the contributions of enhanced auditory-to-motor mappings to speech motor learning. We will design training tasks in which we will use visual feedback to provide feedback regarding subjects' accuracy of auditory-to-motor mapping. | Behavioural | Healthy Adults group 4 |
| Effects of enhanced auditory-motor awareness on speech motor learningIn this intervention, subjects will be trained to control their articulators more accurately and be more aware of their articulators' position and their auditory consequences. After the training tasks, subjects will complete a motor learning task. | Behavioural | Healthy Adults group 5 |
Primary outcome
Change in speech output in response to previously experienced auditory errors
Time frame: within each session of the study that may last up to 2 hours
In each trial, participants will experience an auditory error while they produce speech (e.g., they may say "head" but hear "had"). Participants' speech will be measured in each trial. The investigators will measure how the participants' speech changes due to auditory errors experienced in previous trials.
Change In Speech Output Immidiately After Hearing Auditory Errors
Time frame: within each session of the study that may last up to 2 hours
In each trial, participants will experience an auditory error while they produce speech (e.g., they may say "head" but hear "had"). The investigators will measure how the participants' speech changes due to auditory errors that they experience in the current trial.
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 8 Jul 2026.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Effects of speech variability on speech motor learning, Effects of error-detection training on speech motor learning and Contributions of error awareness to speech motor learning in people with Healthy Adults, run by Arizona State University at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 5 inclusion and 0 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 8 Jul 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Ayoub Daliri (4807278397, ayoub.daliri@asu.edu), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Change in speech output in response to previously experienced auditory errors (time frame: within each session of the study that may last up to 2 hours). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 8 Jul 2026.