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

August 29, 2014 updated by: Assistance Publique Hopitaux De Marseille
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.

Study Overview

Status

Terminated

Conditions

Intervention / Treatment

Detailed Description

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.

Study Type

Interventional

Enrollment (Actual)

1

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • France
      • Marseille, France, 13354
        • Assistance Publique Hopitaux de Marseille

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

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.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Diagnostic
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Cochlear implants
Device: Cochlear implants

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Identify waveforms aimed to improve sound perception by CI recipients
Time Frame: 2 YEARS
2 YEARS

Secondary Outcome Measures

Outcome Measure
Time Frame
To correlate the results of our measures psychophysiques with recordings électrophysiologiques of the neuronal activity of the hearing nerve.
Time Frame: 2 YEARS
2 YEARS

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Assistance Publique Hopitaux De Marseille

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

January 1, 2011

Primary Completion (Actual)

March 1, 2012

Study Completion (Actual)

March 1, 2012

Study Registration Dates

First Submitted

January 21, 2011

First Submitted That Met QC Criteria

January 26, 2011

First Posted (Estimate)

January 27, 2011

Study Record Updates

Last Update Posted (Estimate)

September 1, 2014

Last Update Submitted That Met QC Criteria

August 29, 2014

Last Verified

August 1, 2014

More Information

Terms related to this study

Other Study ID Numbers

  • 2010-A00439-30
  • 2009-35 (Other Identifier: CCRRC)

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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