Status:
COMPLETED
Clinical Applications for Time-Compressed Speech Tests
Lead Sponsor:
US Department of Veterans Affairs
Conditions:
Hearing Loss
Eligibility:
All Genders
50-75 years
Phase:
NA
Brief Summary
The purpose of this study is to determine the effects of age-related cognitive changes on hearing aid benefit based on hearing aid compression time constants. The hypothesis is that people with poor ...
Detailed Description
Recent research has shown the relevance of cognitive function in hearing aid evaluation and the sensitivity of the aging auditory system to temporal distortions. The proposed investigation will examin...
Eligibility Criteria
Inclusion
- Participants will be 50 to 75 years old.
- Hearing loss will be limited to 40 dB HL from 250 Hz through 1000 Hz, and to 60 dB HL through 4000 Hz.
- Hearing loss must be greater than 25 dB at two or more frequencies from 250 to 4000 Hz.
Exclusion
- None of the participants will be current or past hearing aid users; all will be free of ear disease.
- Participants with conductive hearing losses, defined as air-bone gap greater than 15 dB, will be excluded.
- The audiometric battery with acoustic reflex thresholds and decay measurements will be used to exclude anyone with evidence of a central disorder or a pathology other than a sensorineural loss. Those potential participants will be referred to a medical professional.
Key Trial Info
Start Date :
September 1 2006
Trial Type :
INTERVENTIONAL
Allocation :
ACTUAL
End Date :
December 1 2011
Estimated Enrollment :
78 Patients enrolled
Trial Details
Trial ID
NCT00371839
Start Date
September 1 2006
End Date
December 1 2011
Last Update
December 8 2014
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