Deafness Hearing Impairment
Conditions
Interventions
None listed
Sponsors
Universitair Medisch Centrum Groningen
Eligibility
Age
18 Years to 99 Years
Inclusion criteria
Inclusion criteria: All: Native speakers of Dutch of age from 18 years and less than 90 years. CI users: Post-lingual implanted CI users with a free-field phoneme score better then or equal to 50% at 65 dB SPL; An experience of one year or more of using the CI. Normally hearing: Hearing loss should be less than 20 dB HL for 500, 1000, 2000, and 4000 Hz.
Exclusion criteria
Exclusion criteria: All: Inability to cooperate. CI users: Medical or technical complications; Faulty machinery; Pre lingual deafness. Normally Hearing: History of hearing or ear related problems.
Design outcomes
Secondary
| Measure | Time frame |
|---|---|
| As the secondary study parameter we study the configuration of the main variables at which the stimulus ceases to be perceived to be continuous or broken. | — |
Primary
| Measure | Time frame |
|---|---|
| Phonemic restoration is measured as the percent correct of the sentence identified (and repeated) by the subject. The study investigates the relation between the percent correct score and - - Rate of interruption - Duty cycle of interruption - Signal to Noise Ration of the noise in interruption - The effect of modulation of pitch of the speaker*s voice - The effect of modulation of fundamental frequency in speaker*s voice | — |
Countries
Netherlands
Outcome results
None listed