Individuals with Auditory Neuropathy Spectrum Disorders (ANSD) represent 1-10% of adults with hearing loss. These individuals have little or no benefit from current hearing aids because ANSD is a continuum of hearing impairments due to synaptic or neural dysfunction in the peripheral and central parts of the auditory pathways, which impairs temporal information processing without necessarily affecting auditory sensitivity. There is a need to find ad-hoc denoising methods, based on the expert knowledge of audiologists, to improve the noise comprehension performance of these patients. Implemented denoising methods, based on artificial intelligence, will also greatly benefit more standard hearing loss cases.
Longitudinal study consisting of multiple visits with multiple examinations over a total duration of approximately 3 years per ANSD participant and 1 year per normal hearing participant. * normal hearing participant : year 1 : Inclusion visit, Phenotyping visit (Audiological tests), Follow-up Visit 1 (Noise Comprehension Tests) * ANSD participant : year 1 : Inclusion visit, Phenotyping visit (Audiological tests), Follow-up Visit 1 (Noise Comprehension Tests) year 2 : Follow-up Visit 2 (Noise Comprehension Tests) year 3 : Follow-up Visit 3 (Noise Comprehension Tests)
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
BASIC_SCIENCE
Masking
NONE
Enrollment
40
audiological measurements
Objective and subjective audiological measurements
Evaluation of the denoising methods REFINED
CEntre de Recherche et d'Innovation en Audiologie Humaine
Paris, France
RECRUITINGComparison of percentage of words correctly repeated by participants (ANSD and controls)
Evaluate intelligibility, i.e. the percentage of words correctly repeated, for different speech and noise conditions. Tests will be repeated with and without application of speech enhancement methods to the sound.
Time frame: 3 years
Auditory Brain Response (ABRs)
Electrical activity of auditoral pathways, from the auditory nerve to the brain, in response to sound stimuli.
Time frame: 3 years
Percentage of words correctly repeated by participants with different angles of separation of speech and noises sources
Evaluate intelligibility and performance of source localisation for different angles of separation of speech and noises sources
Time frame: 3 years
Percentage of phonemes correctly repeated by participants (Verbo-Frequential Audiometry in the presence of calibrated noise: the DODELE AVfB test)
Evaluate speech perception in noise with phonemes as testing speech
Time frame: 3 years
Percentage of words correctly repeated by participants at different sound level of noise
Assess intelligibility in noise. Vocal tests will be repeated with and without tactile cues.
Time frame: 3 years
Myogenic vestibular evoked potentials (cervical VEMP or c-VEMP).
c-VEMP assesses the vestibular function through saccular and inferior vestibular nerve function performances. The collected parameters of c-VEMP testing include c-VEMP threshold, the latencies of the initial positivity (p1) and negativity (n1), and the p1-n1 inter-amplitude. We will collect these parameters and assess differences in controls vs. ANSDs.
Time frame: 3 years
Subjective evaluation of listening comfort using a visual analog scale
This self-assessment involves placing a cursor on a scale ranging from "very uncomfortable to very comfortable" using a scale ranging from 0 to 10.
Time frame: 3 years
Subjective evaluation of listening efficiency using a visual analog scale
This self-assessment involves placing a cursor on a scale ranging from "very inefficient to very efficient" using a scale ranging from 0 to 10.
Time frame: 3 years
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