The Brain Processes Underlying Speech Motor Learning and Speech Production

NCT ID: NCT05918679

Last Updated: 2025-07-04

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

510 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-06-01

Study Completion Date

2026-08-31

Brief Summary

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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.

Detailed Description

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Conditions

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Healthy Adults

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

DOUBLE

Participants Outcome Assessors

Study Groups

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Healthy Adults group 1

Group Type EXPERIMENTAL

Effects of speech variability on speech motor learning

Intervention Type BEHAVIORAL

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.

Healthy Adults group 2

Group Type EXPERIMENTAL

Effects of error-detection training on speech motor learning

Intervention Type BEHAVIORAL

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.

Healthy Adults group 3

Group Type EXPERIMENTAL

Contributions of error awareness to speech motor learning

Intervention Type BEHAVIORAL

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.

Healthy Adults group 4

Group Type EXPERIMENTAL

Enhancing auditory-to-motor mapping with augmented visual feedback

Intervention Type BEHAVIORAL

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.

Healthy Adults group 5

Group Type EXPERIMENTAL

Effects of enhanced auditory-motor awareness on speech motor learning

Intervention Type BEHAVIORAL

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.

Interventions

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Effects of speech variability on speech motor learning

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.

Intervention Type BEHAVIORAL

Effects of error-detection training on speech motor learning

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.

Intervention Type BEHAVIORAL

Contributions of error awareness to speech motor learning

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.

Intervention Type BEHAVIORAL

Enhancing auditory-to-motor mapping with augmented visual feedback

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.

Intervention Type BEHAVIORAL

Effects of enhanced auditory-motor awareness on speech motor learning

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.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* 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
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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National Institute on Deafness and Other Communication Disorders (NIDCD)

NIH

Sponsor Role collaborator

Arizona State University

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Arizona State University

Tempe, Arizona, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Ayoub Daliri

Role: CONTACT

4807278397

Facility Contacts

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Ayoub Daliri

Role: primary

480-727-8397

Other Identifiers

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R01DC019905

Identifier Type: NIH

Identifier Source: secondary_id

View Link

STUDY00017657

Identifier Type: -

Identifier Source: org_study_id

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