Investigation of Anatomical Correlates of Speech Discrimination
This study is currently recruiting participants.
Verified January 2013 by Steward St. Elizabeth's Medical Center of Boston, Inc.
Information provided by (Responsible Party):
Mark Parker, Steward St. Elizabeth's Medical Center of Boston, Inc.
First received: January 29, 2013
Last updated: January 30, 2013
Last verified: January 2013
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.
Sensorineural Hearing Loss
||Observational Model: Cohort
Time Perspective: Cross-Sectional
Primary Outcome Measures:
| Estimated Enrollment:
| Study Start Date:
| Estimated Study Completion Date:
| Estimated Primary Completion Date:
||January 2014 (Final data collection date for primary outcome measure)
|Ages Eligible for Study:
||18 Years and older
|Genders Eligible for Study:
|Accepts Healthy Volunteers:
Adult patients referred from the St. Elizabeth's Department of Otolaryngology and self-referred patients to the Audiology Clinic.
- Normal hearing to moderate sensorineural hearing loss
- Sufficient English proficiency to complete speech discrimination testing in English
- Hearing loss with greater than a 45 dB HL pure tone average (average hearing thresholds at 500, 1000 and 2000 Hz)
- Conductive hearing loss
- Neurodegenerative disease
Please refer to this study by its ClinicalTrials.gov identifier: NCT01781039
|Steward St. Elizabeth's Medical Center
|Brighton, Massachusetts, United States, 02135 |
|Contact: Mark Parker, PhD 617-779-7956 firstname.lastname@example.org |
|Sub-Investigator: Naomi Bramhall, PhD |
|Sub-Investigator: Michael Dybka, PhD |
|Principal Investigator: Mark Parker, PhD |
Steward St. Elizabeth's Medical Center of Boston, Inc.
||Mark Parker, PhD
||Steward St. Elizabeth's Medical Center
No publications provided
||Mark Parker, Director of Audiology, St. Elizabeth's Medical Center, Steward St. Elizabeth's Medical Center of Boston, Inc.
History of Changes
|Other Study ID Numbers:
|Study First Received:
||January 29, 2013
||January 30, 2013
||United States: Institutional Review Board
Additional relevant MeSH terms:
ClinicalTrials.gov processed this record on April 17, 2014
Hearing Loss, Sensorineural
Nervous System Diseases
Signs and Symptoms