hearing loss, Sensorineural hearing loss
Conditions
Interventions
Subjects will be asked to participate in several speech recognition or psychophysical tests. In each test, they will repeatedly hear sequences of sounds (two or three sounds) and must choose which is
Sponsors
Leids Universitair Medisch Centrum
Eligibility
Age
16 Years to 99 Years
Inclusion criteria
Inclusion criteria: Inclusion criteria for CI users: Implanted with a cochlear implant at least on one side 16 years of age or older At least 6 months experience with their CI Speech scores in quiet of at least 60% Inclusion criteria for normal-hearing subjects: 16 years of age or older Average pure-tone threshold of 35 dB or less across a frequency range of 500 - 4000 Hz.
Exclusion criteria
Exclusion criteria: Exclusion criteria for CI users: Disorders other than a hearing impairment that could affect the study results Not able to complete 2 hours of consecutive testing Not native Dutch speaker Exclusion criteria for normal-hearing subjects: Disorders that could affect the study results Not able to complete 2 hours of consecutive testing Not native Dutch speaker
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Main study parameters are performance in psychophysical tests for expressed in the relevant units, such as speech reception threshold (SRT), ripples per octave (RPO), just noticeable difference (JND) and correct percentages. | — |
Secondary
| Measure | Time frame |
|---|---|
| Secondary study parameters are subject characteristics possibly influencing performance and discrimination abilities like using a cochlear implant, type of implant, electrode position in the cochlea, duration of implantation, duration of hearing loss/deafness, recent Consonant-Vowel-Consonant (CVC) scores and demographics. | — |
Countries
Netherlands
Contacts
Public ContactB Knipscheer
Leids Universitair Medisch Centrum
Outcome results
None listed