Impact of Binaural Audition on Postural Performance and Orientation

Study Overview
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Brief Summary
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This is a prospective research study talking place at University hospital of Dijon and requiring the inclusion of 20 healthy subjects, 10 patients with unilateral cochlear implants and 10 patients with bilateral cochlear implants to carry out: an audio-vestibular examination, a videonystagmoscopic study, a posturography study and a movement study. The aim of the study is to evaluate the impact of binaural audition on postural performance and orientation.

Official Title
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Prospective, Single Centre Cohort Study on the Impact of Binaural Audition on Postural Performance and Orientation in Healthy Subjects and Patients With Cochlear Implants.

Conditions
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Unilateral Cochlear Implants, Bilateral Cochlear Implants

Intervention / Treatment
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* Other: Audio-vestibular examination
* Other: Videonystagmoscopic study
* Other: Posturographies study


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patients who have provided written consent Patients with health insurance cover Age between 18 and 75 years old For subjects with implants: unilateral or bilateral cochlear implants for more than one year For healthy subjects: absence of known audio-vestibular disorders (deafness, vertigo) Exclusion Criteria: Patients dependent on an aid to move around (cane, wheelchair, crutch, ...) Patients under guardianship Pregnant women Disability interfering with understanding or carrying out instructions Associated sensory or motor disorders

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 75 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Other
Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: healthy subjects<br> | Other: Audio-vestibular examination<br>* Vestibular tests (videonystagmoscopy and head video impulse test), the tonal and vocal audiogram and the localigramme to the cochlear implanted subjects. Tonal audiometry and localigramme to the healthy subjects.<br>Other: Videonystagmoscopic study<br>* Rotating sound stimulation on a rotatory armchair and a laborer of Fukuda with sound stimulation and questionary before and after examination.<br>Other: Posturographies study<br>* (stabilometry, sensory preferences, indications of energy consumption) with stereophonic stimulation and questionnaire before and after the examination.<br>|
| Experimental: patients with unilateral cochlear implants<br> | Other: Audio-vestibular examination<br>* Vestibular tests (videonystagmoscopy and head video impulse test), the tonal and vocal audiogram and the localigramme to the cochlear implanted subjects. Tonal audiometry and localigramme to the healthy subjects.<br>Other: Videonystagmoscopic study<br>* Rotating sound stimulation on a rotatory armchair and a laborer of Fukuda with sound stimulation and questionary before and after examination.<br>Other: Posturographies study<br>* (stabilometry, sensory preferences, indications of energy consumption) with stereophonic stimulation and questionnaire before and after the examination.<br>|
| Experimental: patients with bilateral cochlear implants<br> | Other: Audio-vestibular examination<br>* Vestibular tests (videonystagmoscopy and head video impulse test), the tonal and vocal audiogram and the localigramme to the cochlear implanted subjects. Tonal audiometry and localigramme to the healthy subjects.<br>Other: Videonystagmoscopic study<br>* Rotating sound stimulation on a rotatory armchair and a laborer of Fukuda with sound stimulation and questionary before and after examination.<br>Other: Posturographies study<br>* (stabilometry, sensory preferences, indications of energy consumption) with stereophonic stimulation and questionnaire before and after the examination.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Presence of a sensation of rotation due to a turning sound source |  | Baseline | 
| Modification of posturography parameters in the presence and absence of a de turning sound source |  | Baseline | 
| Time to cover a distance of 3metres in a straight line and number of steps used |  | Baseline |