Hearing Aid Processing and Working Memory in Realistic Spatial Conditions
NCT ID: NCT04521166
Last Updated: 2025-09-15
Study Results
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View full resultsBasic Information
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COMPLETED
NA
42 participants
INTERVENTIONAL
2021-05-06
2023-06-29
Brief Summary
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Detailed Description
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Conditions
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Study Design
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RANDOMIZED
FACTORIAL
TREATMENT
DOUBLE
Study Groups
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Setting 1
Hearing aid features presented in this arm include omnidirectional microphone settings and fast-acting compression
Hearing aid
Settings in a wearable hearing aid will be adjusted within a clinically-relevant range for two features. The features include wide dynamic range compression and microphone directionality.
Setting 2
Hearing aid features presented in this arm include omnidirectional microphone settings and slow-acting compression
Hearing aid
Settings in a wearable hearing aid will be adjusted within a clinically-relevant range for two features. The features include wide dynamic range compression and microphone directionality.
Setting 3
Hearing aid features presented in this arm include directional microphone settings and fast-acting compression
Hearing aid
Settings in a wearable hearing aid will be adjusted within a clinically-relevant range for two features. The features include wide dynamic range compression and microphone directionality.
Setting 4
Hearing aid features presented in this arm include directional microphone settings and slow-acting compression
Hearing aid
Settings in a wearable hearing aid will be adjusted within a clinically-relevant range for two features. The features include wide dynamic range compression and microphone directionality.
Interventions
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Hearing aid
Settings in a wearable hearing aid will be adjusted within a clinically-relevant range for two features. The features include wide dynamic range compression and microphone directionality.
Eligibility Criteria
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Inclusion Criteria
* Sensorineural hearing loss with pure-tone thresholds between 25-70 decibel hearing level (dB HL) at octave frequencies between 250 and 3000 Hz
* Speak English as their primary language
* Normal or corrected-to-normal vision (\<=20/50)
* Participants will be in good health (self-report)
Exclusion Criteria
* Participants who score \< 23 on the cognitive screening test (Montreal Cognitive Assessment)
* Evidence of conductive hearing loss or middle ear issues
* Significant history of otologic or neurologic disorders
* Evidence of significant asymmetry between ears
* Non-English-speaking or non-native English speaking
18 Years
ALL
No
Sponsors
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National Institute on Deafness and Other Communication Disorders (NIDCD)
NIH
Northwestern University
OTHER
Responsible Party
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Pamela Souza
Professor
Principal Investigators
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Varsha Rallapalli, AuD, PhD
Role: PRINCIPAL_INVESTIGATOR
Northwestern University
Locations
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Northwestern University
Evanston, Illinois, United States
Countries
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References
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Rallapalli V, Freyman R, Souza P. Relationship Between Working Memory, Compression, and Beamformers in Ideal Conditions. Ear Hear. 2025 Mar-Apr 01;46(2):523-536. doi: 10.1097/AUD.0000000000001605. Epub 2024 Nov 6.
Provided Documents
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Document Type: Study Protocol
Document Type: Statistical Analysis Plan
Other Identifiers
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STU00210459
Identifier Type: -
Identifier Source: org_study_id
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