NCT06953700
Effects of Asymmetries on Binaural-Hearing Abilities Across the Lifespan
Enrolling by Invitation
NAAges 18–80InterventionalBasic scienceUniversity of Maryland, College ParkInvestigator-initiated
~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
Where it's being run
1 sites across 1 statesMaryland1
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
Do you actually qualify for this trial?
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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)