Pitch and Loudness Perception by Cochlear Implant Listeners: Psychophysics and Objective Measures

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

NA

Total Enrollment

1 participants

Study Classification

INTERVENTIONAL

Study Start Date

2011-01-31

Study Completion Date

2012-03-31

Brief Summary

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Cochlear implants (CIs) have restored some sense of hearing to more than 120 000 people worldwide. While most patients show good scores of speech recognition in quiet, a large majority of them also struggle in more challenging listening situations, such as speech in noise or music. This project aims to understand the basic mechanisms of electrical stimulation of the auditory nerve, in order to identify the important cues that the electrical signal should convey and to possible improve sound perception by CI users.

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Detailed Description

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This study will take place in the ENT department of La Timone hospital in Marseille, where more than 120 adults have been implanted. Our study will comprise several phases, including (1) temporal coding of pitch, (2) spatial coding of pitch, and (3) loudness perception. Eight adult implant users will be recruited for each of these phases.

Conditions

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Cochlear Implant Listeners

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

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Cochlear implants

Group Type EXPERIMENTAL

Cochlear implants

Intervention Type DEVICE

Interventions

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Cochlear implants

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* The adults of more than 18 years old at the beginning of the study without notion of minimal or maximal duration of setting-up(presence).
* The adults WITH cochlear implant listeners .

Exclusion Criteria

* Presence of intrusive disorders of the personality or mental deficiency. Presence of associated driving disorders. Pregnant or breast-feeding woman.

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No