Phonemic Restoration: A Behavioural Study with Cochlear Implants

Completed

• Conditions: Deafness; Hearing Impairment; 10019243

• Registration Number: NL-OMON39050
• Lead Sponsor: niversitair Medisch Centrum Groningen

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Study Completion: 2016-01-29
• Last Update Posted: 6 May 2024

Recruitment & Eligibility

• Status: Completed
• Sex: Not specified
• Target Recruitment: 0

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

All: Inability to cooperate.
CI users: Medical or technical complications; Faulty machinery; Pre lingual deafness.
Normally Hearing: History of hearing or ear related problems.

Study & Design

• Study Type: Interventional
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
<p>Phonemic restoration is measured as the percent correct of the sentence<br /><br>identified (and repeated) by the subject.<br /><br><br /><br>The study investigates the relation between the percent correct score and -<br /><br>- Rate of interruption<br /><br>- Duty cycle of interruption<br /><br>- Signal to Noise Ration of the noise in interruption<br /><br>- The effect of modulation of pitch of the speaker*s voice<br /><br>- The effect of modulation of fundamental frequency in speaker*s voice</p><br>

Secondary Outcome Measures

Name	Time	Method
<p>As the secondary study parameter we study the configuration of the main<br /><br>variables at which the stimulus ceases to be perceived to be continuous or<br /><br>broken.</p><br>