Cerebral Activation and Bilateral Stimulation by Cochlear Implantation in Bilateral Deaf Adults

Hospices Civils de Lyon43 enrolled

Overview

The primary objective to this study is to describe bilateral auditory information processing in profoundly deaf patients with bilateral cochlear implants compared with normal hearing patients. Assumption used is that due to the central consequences of bilateral deafness on binaural auditory information central processing, time between activation of the two cochlear implants is a decisive factor in bilateral implantation compared to unilateral implantation

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

OTHER

Masking

NONE

Enrollment

Conditions

Deafness

Interventions

Positron Emission Tomography (PET)OTHER

Electroencephalogram (EEG)OTHER

Eligibility

Sex: ALLMin age: 18 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion criteria for patients: \- profoundly deaf patients with bilateral cochlear implants Exclusion criteria for patients: * post-operative complications * incomplete surgical insertion of one of the cochlear implant * age under 18 years * non-compliant patient * pregnant woman or woman with no efficient contraception method * informed consent not signed * no health insurance Inclusion criteria for control \- normal hearing subjects Exclusion criteria control * normal hearing subject * subject under 18 years old * unilateral or bilateral hearing loss * non-compliant subject * pregnant woman or woman with no efficient contraception method * informed consent not signed * no health insurance

Locations (1)

Département d'ORL, Hôpital Edouard Herriot

Lyon, France

Outcomes

Primary Outcomes

Cortical brain activation pattern

Cortical brain activation pattern obtained by PET or EEG cartography. Activation pattern will be compared between normal hearing subjects and deaf adults with bilateral cochlear implants

Time frame: 6 months

Data from ClinicalTrials.gov

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