Status:
COMPLETED
Spectral Dynamics and Speech Understanding by Hearing Impaired People
Lead Sponsor:
VA Office of Research and Development
Conditions:
Hearing Loss, Sensorineural
Eligibility:
All Genders
18-65 years
Phase:
NA
Brief Summary
The purpose of this program of research is to understand the perception of the dynamic spectral properties of speech by hearing-impaired listeners, with the long-term goal of improving speech understa...
Detailed Description
This is a behavioral study of human auditory perception. Each experiment in this study involves prospective data collection from three types of listeners. The experimental listeners will be people wit...
Eligibility Criteria
Inclusion
- individuals with hearing thresholds of 20 dB HL or better at all octave frequencies between 250 Hz and 4000 Hz
- or, individuals with bilateral sensorineural hearing losses with thresholds between 25 and 70 dB HL and no losses greater than 70 dB HL at frequencies of 4000 Hz or below
Exclusion
- a conductive hearing impairment or other otological pathology
- hearing thresholds greater than 70 dB HL at any frequencies of 4000 Hz or below or pure-tone averages (averaged across 500, 1000, and 2000 Hz) of greater than 65 dB HL
- bilateral differences greater than 20 dB at any frequency below 4000 Hz
- an inability to complete the experimental tasks
Key Trial Info
Start Date :
August 1 2013
Trial Type :
INTERVENTIONAL
Allocation :
ACTUAL
End Date :
September 1 2016
Estimated Enrollment :
50 Patients enrolled
Trial Details
Trial ID
NCT01867515
Start Date
August 1 2013
End Date
September 1 2016
Last Update
April 26 2018
Active Locations (1)
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1
VA Portland Health Care System, Portland, OR
Portland, Oregon, United States, 97239