The Brain Processes Underlying Speech Motor Learning and Speech Production
ConditionHealthy Adults
Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18+
SponsorArizona State University
About this trial
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.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
18 years and older
native speaker of American English
normal (age-appropriate) binaural pure-tone hearing threshold
not taking medications affecting sensorimotor functioning
Disqualifiers
None
Trial design
Design model
Parallel
Treatments tested in this trial
Effects of speech variability on speech motor learning
BehavioralThis 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
BehavioralThis 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
BehavioralThis 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
BehavioralThis 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
BehavioralIn 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.
Treatment groups
510 Participants
are divided into 5 treatment groupsGroup A: Healthy Adults group 1Experimental treatment 1 intervention
Group B: Healthy Adults group 2Experimental treatment 1 intervention
Group C: Healthy Adults group 3Experimental treatment 1 intervention
Group D: Healthy Adults group 4Experimental treatment 1 intervention
Group E: Healthy Adults group 5Experimental treatment 1 intervention
Trial outcomes
Primary outcomes
1
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.
Time frame
within each session of the study that may last up to 2 hours2
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.
Time frame
within each session of the study that may last up to 2 hoursSponsors and contacts
Click on the lead sponsor to view all of their trials.
Arizona State University
Lead sponsor
National Institute on Deafness and Other Communication Disorders (NIDCD)
Collaborator
Source ClinicalTrials.gov