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Hearing Impaired ChildrenNCT07782567

Artificial Grammar Learning in Children Who Are Deaf or Hard-of-Hearing: Stimulus Length Effect

A study testing Short linguistic content and Long linguistic content in people with Hearing Impaired Children, run by University of Illinois Chicago.

Not yet recruiting

Opening soon. The study is approved but enrolment has not started yet. Sites may already take enquiries.

Sites and contacts
Official record
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Trial summary

The goal of this basic experimental study involving humans (BESH) clinical trial is to examine how stimulus length affects grammar learning in children who are deaf or hard-of-hearing and who primarily use spoken language. Read more about this study

Who is it for?
Ages 5 to 7 years
Conditions the study is for
Hearing Impaired Children
What is being tested?
Short linguistic content and Long linguistic content
Could I receive a placebo?
No, everyone receives an active treatment
How many people
30 participants
Where
No sites listed yet
Study dates
Nov 2026to 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 5 to 7 years
  • All sexes
  • No healthy volunteers
  • Child

Who may be able to join

  • Aged 5- to 7-years-old
  • Diagnosed with bilateral hearing loss
  • Uses bilateral hearing devices (cochlear implants, bilateral hearing aids, or a cochlear implant and a hearing aid)
  • Has used first hearing device for at least one year
  • No history of developmental delay that is unrelated to hearing loss
  • Normal non-verbal IQ
Show all 10Show fewer
  • Normal or corrected-to-normal vision
  • Normal color vision
  • Primarily spoken English user
  • Access to remote video call technology

Who cannot join

  • Younger than 5 years old
  • 8 years, 0 months or older
  • Normal hearing in one or both ears
  • Uses one or no hearing device (e.g., cochlear implant, hearing aid)
  • Has not used at least one hearing device for one year
  • History of developmental delay that is unrelated to hearing loss
Show all 11Show fewer
  • Nonverbal IQ below normal limits
  • Visual impairment not corrected by glasses or contacts
  • Color vision impairment
  • Primarily uses a signed language or non-English language to communicate
  • Does not have access to remote video call technology

Trial locations and contacts

No sites are listed yet. Contact the study team or a site near you to ask about taking part.

Heidi M Mettler, PhD contact

312-996-8481

mettler@uic.edu

Tina M Grieco-Calub, PhD contact

312-996-0123

tgcalub@uic.edu

About this study

The goal of this basic experimental study involving humans (BESH) clinical trial is to examine how stimulus length affects grammar learning in children who are deaf or hard-of-hearing and who primarily use spoken language. The main question it aims to answer is: do short or long stimuli better support grammar learning in this population? Participants will complete an artificial grammar learning task to see which condition (short vs. long stimuli) results in better grammar learning.

Being tested
Short linguistic content, Long linguistic content
Keywords
child, deaf, hard-of-hearing, hearing loss, hearing impairment, spoken language users, grammar, language development, language acquisition, morphology
Medical subject headings
Hearing Loss

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Short linguistic contentBehavioural

    Grammar-like auditory stimuli will comprise short linguistic content.

  • Long linguistic contentBehavioural

    Grammar-like auditory stimuli will comprise long linguistic content.

Study groups in NCT07782567
Study groupRoleWhat they receive
Stimulus LengthExperimentalChildren will complete an artificial grammar learning task. They will passively listen to two grammar-like auditory sequences in one of two experimental conditions that differ in syllable length. In the short condition, the sequences will contain 1-syllable stimuli. In the long condition, the sequences will contain 4-syllable stimuli.
Receives: Behavioral: Short linguistic content; Behavioral: Long linguistic content

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Accuracy on third grammaticality judgment test

    Participants will be presented with novel, grammar-like auditory stimuli. They will decide whether each stimulus matches or does not match the artificial language that they were previously presented with.

    Measured: End of day 2 of the artificial grammar learning task

Secondary outcomes (2)
  1. Accuracy on first grammaticality judgment test

    Participants will be presented with novel, grammar-like auditory stimuli. They will decide whether each stimulus matches or does not match the artificial language that they were previously presented with.

    Measured: Middle of day 1 of the artificial grammar learning task

  2. Accuracy on the second grammaticality judgment task

    Participants will be presented with novel, grammar-like auditory stimuli. They will decide whether each stimulus matches or does not match the artificial language they were presented with previously.

    Measured: Start of day 2 of the artificial grammar learning task

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted24 Aug 2026
  2. Study startNov 2026 (estimated)
  3. Primary completionJun 2027 (estimated)
  4. Study completionAug 2027 (estimated)

Resources

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
Not applicable
Intervention model
Single group
Model description
The study uses a within-subjects design to compare conditions.
Masking
None (open label)
Enrolment
30 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07782567
Sponsor's protocol ID
STUDY2026-0274a
Other IDs
1K99DC024195-01
Status last verified
Aug 2026
First submitted
14 Aug 2026
Last updated
5 Nov 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A study testing Short linguistic content and Long linguistic content in people with Hearing Impaired Children, run by University of Illinois Chicago.

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 10 inclusion and 11 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: opening soon, as of the sponsor's last update on 5 Nov 2026. Status can change between updates, so confirm with the study contact before making plans.

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 Heidi M Mettler, PhD (312-996-8481, mettler@uic.edu), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Accuracy on third grammaticality judgment test (time frame: End of day 2 of the artificial grammar learning task). 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 5 Nov 2026.

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