Intensity and temporal detection in adult cochlear implant users
Research type
Research Study
Full title
Amplitude modulation detection, intensity difference limen and spectral resolution in adult cochlear implant users.
IRAS ID
236017
Contact name
Dan Jiang
Contact email
Sponsor organisation
Guy's & St Thomas' Foundation NHS Trust
Duration of Study in the UK
0 years, 3 months, 0 days
Research summary
The continuing development in the design and improved capability of Cochlear Implant (CI) systems to translate a useful sound signal has contributed to improved speech understanding for users. However, despite these reported improvements, a limitation remains for CI users when understanding speech presented at soft levels in a quiet background environment and understanding speech when in the presence of a competing noise, such as in a group. Researchers to date have evaluated the effect of adjusting several individual settings used to program the CI for the benefit of speech understanding, but in research there remains no clear info review of the effect of adjusting settings both individually or together using speech understanding as a measure of outcome. Accordingly; there is no clinical agreement or guidelines for clinicians to program CI for the benefit of speech understanding. The study will explore the change to two basic settings within a CI, using an outcome of how well the user can detect changes in loudness, changes in the time pattern of sound information and changes in the pitch of sound information. Detection of these features are a basic skill necessary to understand the more complex speech signal. The measurements will be made across one visit in an outpatient setting, taking no more than three hours in total. Experienced adult CI users will be recruited to respond to a series of listening tasks.
REC name
North East - Tyne & Wear South Research Ethics Committee
REC reference
18/NE/0272
Date of REC Opinion
4 Sep 2018
REC opinion
Favourable Opinion