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

This study has been terminated.
Information provided by (Responsible Party):
Assistance Publique Hopitaux De Marseille Identifier:
First received: January 21, 2011
Last updated: August 29, 2014
Last verified: August 2014
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.

Condition Intervention
Cochlear Implant Listeners
Device: Cochlear implants

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Diagnostic
Official Title: Pitch and Loudness Perception by Cochlear Implant Listeners: Psychophysics and Objective Measures

Resource links provided by NLM:

Further study details as provided by Assistance Publique Hopitaux De Marseille:

Primary Outcome Measures:
  • Identify waveforms aimed to improve sound perception by CI recipients [ Time Frame: 2 YEARS ]

Secondary Outcome Measures:
  • To correlate the results of our measures psychophysiques with recordings électrophysiologiques of the neuronal activity of the hearing nerve. [ Time Frame: 2 YEARS ]

Enrollment: 1
Study Start Date: January 2011
Study Completion Date: March 2012
Primary Completion Date: March 2012 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Cochlear implants Device: Cochlear implants

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.

Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

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.
  Contacts and Locations
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Please refer to this study by its identifier: NCT01284790

Assistance Publique Hopitaux de Marseille
Marseille, France, 13354
Sponsors and Collaborators
Assistance Publique Hopitaux De Marseille
Study Director: BERNARD BELAIGUES Assistance Publique hôpitaux de Marseille
  More Information

Responsible Party: Assistance Publique Hopitaux De Marseille Identifier: NCT01284790     History of Changes
Other Study ID Numbers: 2010-A00439-30
2009-35 ( Other Identifier: AP HM )
Study First Received: January 21, 2011
Last Updated: August 29, 2014 processed this record on April 25, 2017