Investigation of Anatomical Correlates of Speech Discrimination
| Status: | Recruiting |
|---|---|
| Conditions: | Other Indications |
| Therapuetic Areas: | Other |
| Healthy: | No |
| Age Range: | 18 - 100 |
| Updated: | 4/6/2019 |
| Start Date: | January 2013 |
| End Date: | August 2024 |
Understanding speech is essential for good communication. Individuals with hearing loss and
poor speech discrimination often have little success with hearing aids because amplifying
sound improves audibility, but not clarity of the speech signal. The purpose of this study is
to determine the relative importance of the sensory cells of the inner ear and auditory
neurons on speech discrimination performance in quiet and in noise. This information may be
used as a predictor of hearing aid benefit. The investigators expect to find decreased speech
understanding ability resulting from both loss of sensory cells and the loss of auditory
neurons.
poor speech discrimination often have little success with hearing aids because amplifying
sound improves audibility, but not clarity of the speech signal. The purpose of this study is
to determine the relative importance of the sensory cells of the inner ear and auditory
neurons on speech discrimination performance in quiet and in noise. This information may be
used as a predictor of hearing aid benefit. The investigators expect to find decreased speech
understanding ability resulting from both loss of sensory cells and the loss of auditory
neurons.
Inclusion Criteria:
- Normal hearing to moderate sensorineural hearing loss
- Sufficient English proficiency to complete speech discrimination testing in English
Exclusion Criteria:
- Hearing loss less than a 45 dB HL pure tone average (average hearing thresholds at
500, 1000 and 2000 Hz)
- Conductive hearing loss
- Neurodegenerative disease
We found this trial at
1
site
Brighton, Massachusetts 02135
Principal Investigator: Mark Parker, PhD
Phone: 617-779-7956
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