Outcomes Clinical Trial
Official title:
Effects of Interaural Loudness and Pitch Mismatch on SSD-CI Performance
Interaural loudness and pitch mismatch in single-sided deaf cochlear implant (SSD-CI) recipients reduces binaural processing cues and contributes to performance outcomes, specifically speech understanding in noise and localization. We aim to improve binaural cues through speech processor program modifications that reduce interaural mismatches.
Status | Recruiting |
Enrollment | 50 |
Est. completion date | February 8, 2025 |
Est. primary completion date | August 8, 2024 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 18 Years and older |
Eligibility | Inclusion Criteria: - Participants for the proposed study will be adults with single-sided deafness. Participants will have at least 6 months experience with their cochlear implant or will be newly implanted with the cochlear implant. Inclusion criteria for the experienced CI user group and the newly implant group are as follows: - 18 years of age and older - Postlingual onset of SSD - Pure tone average (PTA) at 500, 1000, and 2000 Hz of less than or equal to 30 dB HL in the contralateral ear, known as the normal hearing ear - Implanted with or chosen to be implanted with a Nucleus cochlear implant - Full insertion of electrode array Exclusion Criteria: - • Not meeting the inclusion criteria |
Country | Name | City | State |
---|---|---|---|
United States | Washington University School of Medicine | Saint Louis | Missouri |
Lead Sponsor | Collaborator |
---|---|
Washington University School of Medicine | Cochlear |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Speech understanding in noise | Testing in noise will be obtained using the R-Space test which simulates listening in a noisy restaurant. The score is a signal-to-noise ratio that reflects 50% speech understanding in noise. | 6 months |
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