NCT06649916 · The University of Texas at Dallas
Word Learning From Parentese in Autistic Children
What this study is about
The overall objective of this research is to determine whether parentese delivered in the video format (Aim 1) and in live interaction (Aim 2) facilitates novel word learning in autistic children and to investigate if there are factors that influence the effect of parentese on word learning (Aim 3).
View original scientific description
The overall objective of this research is to determine whether parentese delivered in the video format (Aim 1) and in live interaction (Aim 2) facilitates novel word learning in autistic children and to investigate if there are factors that influence the effect of parentese on word learning (Aim 3).
Interventions
BEHAVIORAL
Parentese Speech
Novel words are introduced in parentese, a type of speech that is typically characterized by greater pitch variation, longer duration, and louder volume
BEHAVIORAL
Adult Registered Speech
Novel words are introduced in standard adult register.
Primary outcome measures
Proportion of time during which children's eye gaze is directed toward the target object
Time frame: 300 ms after the target words are introduced
Children's eye gaze is recorded as they look at images. The proportion of time during which gaze is directed to an image of the targeted word is the dependent measure.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- children with or without a diagnosis of ASD between 18 and 59 months
Exclusion criteria
- hears another language more than 10% of time based on parent report
- has uncorrected visual impairment or hearing impairment
- has developmental disorders or medical conditions other than ASD that affect language or cognition (excepting psychiatric conditions often comorbid with ASD such as ADHD)
Where
- Richardson, Texas
Collaborators
National Institute on Deafness and Other Communication Disorders (NIDCD)
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Oct 23, 2025 · Source of record for eligibility and locations