sensory hearing loss, deafness deafness
Conditions
Interventions
Although in this study only patients are measured who have opted for the Advanced Bionics HiRes Cochleair Implant, the protocols and analyses of the research can at a later stage (in a follow-up study
Sponsors
Radboud Universiteit Nijmegen
Eligibility
Age
18 Years to 99 Years
Inclusion criteria
Inclusion criteria: • Aged 18 or older and mentally competent• Selected for a new CI implant of the HiRes family with Marvel speech processor of Advanced Bionics.• Native Dutch speaker• Written informed consent
Exclusion criteria
Exclusion criteria: Disability that could interfere with the completion of the tests (e.g., psychiatric problems, or visually impaired) and prelingually deaf.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The primary research variables are the reaction times to perceived changes in spectrotemporally modulated sounds (STM-RT paradigm measured in the clinic and at home) and in direct electrical stimulation modulations of selected electrode pairs (TED-RT paradigm, performed in the clinic). From the STM-RT data, we deduce the patient's spectrotemporal sensitivity, and measure (in the clinic) the effects on the reaction times to changes in fitting; from the TED-RT data, together with electrophysiological data obtained intra-operatively (eCAP, transimpedance matrix, and eCochG), we assess the quality of signal transmission from individual electrodes and their interactions. Both datasets are crucial for better understanding, model, and predicting the variation in speech comprehension in noisy environments. | — |
Secondary
| Measure | Time frame |
|---|---|
| Visual reaction times provide important information about the idiosyncratic variation in reaction times between participants that is not caused by auditory function. The cognitive reading test and attention test offer valuable further insights into the patient’s short-term memory, which is also a contributing cognitive factor for speech comprehension in noisy environments. | — |
Countries
Denmark, Germany, Netherlands
Contacts
Public ContactAJ Opstal
Radboud Universiteit Nijmegen
Outcome results
None listed