Return to Results

Investigation of Anatomical Correlates of Speech Discrimination

new search

Trial Conditions
  • Sensorineural Hearing Loss
What is the purpose of this trial?

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.

Date & Status


Who can Participate?


18  - 100 



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

Gender: Both
Steward Physician(s)
  • Mark Parker, PhD
  • St. Elizabeth's Medical Center - Recruiting
For more information about this trial, contact

Mark Parker, PhD
Phone: (617) 779-7956

Physician Researcher

Investigator Name:

  • Mark Parker, PhD

Other Information

Sponsor: Steward St. Elizabeth's Medical Center of Boston, Inc.
Phase: N/A
Trial ID: NCT01781039
Volunteers:  Accepting Healthy Volunteers

new search

Connect with Steward

Visit Our Twitter Feed Visit Our Facebook Page Email This Page Print This Page

Subscribe to our patient e-newsletter

Copyright © 2015 Steward Health Care
Connect Healthcare Panacea CMS Solutions