Spectral Dynamics and Speech Understanding by Hearing Impaired People
Hearing Loss, Sensorineural
About this trial
This is an interventional other trial for Hearing Loss, Sensorineural focused on measuring Hearing, Hearing Loss, sensorineural, Speech Perception
Eligibility Criteria
Inclusion Criteria:
- 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 Criteria:
- 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
Sites / Locations
- VA Portland Health Care System, Portland, OR
Arms of the Study
Arm 1
Arm 2
Arm 3
Active Comparator
Active Comparator
Active Comparator
Younger normally-hearing listeners
Hearing-impaired listeners
Older normally-hearing listeners
Participants with auditory thresholds within the normal limits. age between 18 and 35 individuals with hearing thresholds of 20 dB HL or better at all octave frequencies between 250 Hz and 4000 Hz Acoustic distortion of speech
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 age 18 to 65 Acoustic distortion of speech
Participants with auditory thresholds within the normal limits. age between 36 and 65 individuals with hearing thresholds of 20 dB HL or better at all octave frequencies between 250 Hz and 4000 Hz Acoustic distortion of speech