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NCT06953700

Effects of Asymmetries on Binaural-Hearing Abilities Across the Lifespan

Enrolling by Invitation
NAAges 18–80InterventionalBasic science
University of Maryland, College Park
~150 participants
Updated 2025-05-01 on ClinicalTrials.gov
What's tested:Test of hearing function

At a glance

Recruiting sites
0 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Sound localization
Measured over After enrollment, in one visit lasting 1-2 hours
+1 more outcome measured

Conditions

Aging
Hearing Loss
Hearing Asymmetry

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NCT06953700

Where you'd take part

This study runs at 1 site. They're the same protocol — you choose where, and that choice sets who your contact draft is addressed to.

  • University of Maryland, College Park

    College Park, Marylandno site contact published

Sites open and close at different times, so the status above is per site — it can differ from the study's overall status.

Study leadership

  • Matthew J. Goupell, PhD · PRINCIPAL_INVESTIGATOR · University of Maryland, College Park
  • Michael P. Cummings, PhD · STUDY_DIRECTOR · University of Maryland, College Park

Who to contact

This trial hasn't published a contact. View it on ClinicalTrials.gov

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Eligibility criteria

Inclusion

Adults (18-80 years)
No hearing asymmetry between ears (≤10 dB at any frequency) or, hearing asymmetry between ears \>10 dB
Native English speakers
Primarily use oral language
Sufficient corrected or uncorrected visual acuity (20/50 or better) to read large-font text

Exclusion

Acoustic tone-detection threshold \>50 dB HL at any octave frequency (250-4000 Hz) in either ear (i.e., more than a moderate hearing loss)
History of neurological disorders (e.g., stroke, Parkinson's disease) determined by self-report
History of post-traumatic stress disorder or traumatic brain injury determined by self-report
Possibility of acoustic neuroma, hearing asymmetry (\>10 dB at three consecutive audiometric threshold frequencies)
Montreal Cognitive Assessment (MoCA) score \<22/30
No oral language use
Cochlear implant user
Conductive hearing loss

What this trial measures

  • Sound localizationAfter enrollment, in one visit lasting 1-2 hours

    A measure of sound localization ability (summarizing the ability using broadband and narrowband noise stimuli). Localization is the ability to accurately report the location from which a sound source originated. The difference between actual and reported locations is used for the measure. (Units, angle measure in degrees)

  • Spatial release from maskingAfter enrollment, in one visit lasting 1-2 hours

    A measure of speech understanding. Spatial release from masking is calculated by finding the difference in thresholds between listening with co-located vs. separated masking signals. (Units, dB)