Skip to main content
OpenTrials
Recruiting

NCT Number: NCT05918679

The Brain Processes Underlying Speech Motor Learning and Speech Production

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.

Recruiting

Interested in participating?

Request Info

Key information

Conditions

Healthy Adults

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Arizona State University

Tempe, Arizona, 85287, United States

Location status: Recruiting

Location contact

Ayoub Daliri

CONTACT

[email protected]

480-727-8397

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

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

Exclusion criteria

Treatment and study plan

Effects of speech variability on speech motor learning

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.

Effects of error-detection training on speech motor learning

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.

Contributions of error awareness to speech motor learning

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.

Enhancing auditory-to-motor mapping with augmented visual feedback

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.

Effects of enhanced auditory-motor awareness on speech motor learning

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.

Primary outcomes

  1. 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.

  2. 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.

Study contacts

Contact information is provided by the study sponsor or research team.

Ayoub Daliri

CONTACT

[email protected]

4807278397

Sponsors and collaborators

Lead sponsor

Arizona State University

Other

Collaborators

  • National Institute on Deafness and Other Communication Disorders (NIDCD)

Registry information

Official study title

Improving Speech Motor Learning Processes Using Augmented Behavioral Interventions

Important dates

Study start
2023
Primary completion
2027
Study completion
2027
First posted
Jun 26, 2023
Registry last updated
Jul 8, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Related clinical trials

Published trials that share one or more normalized conditions with this study.