Three-dimensional Perception of Sounds in Military with Acoustic Trauma

NCT ID: NCT05468567

Last Updated: 2024-09-25

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Total Enrollment

46 participants

Study Classification

OBSERVATIONAL

Study Start Date

2023-03-31

Study Completion Date

2026-03-31

Brief Summary

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Spatial hearing capacities of soldiers with acoustic trauma are evaluated in ENT consultations with routine tests (i.e. tonal audiometry, voice audiometry). While the results conclude that soldiers with acoustic trauma have sufficient abilities to carry out professional missions, soldiers report recurring complaints of sound localization (spatial hearing), i.e. difficulties in identifying the position of sound sources in their environment. However, there is currently no objective test to identify and objectify these complaints of spatial hearing.

The investigators have developed a new approach (SPHERE) based on virtual reality and 3D motion tracking, allowing us to evaluate and record the spatial hearing performance of subject with hearing deficit. This system allowed us to highlight localization deficits in three-dimensional space.

This project explores and quantifies the spatial hearing impairments of soldiers with acoustic trauma. The quantification of the spatial hearing capacities will allow to define a specific rehabilitation strategy of spatial hearing deficits.

Detailed Description

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Conditions

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Hearing Loss

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

PROSPECTIVE

Study Groups

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Military person with acoustic trauma (experimental group)

Active or reserve military member, diagnosed with acoustic trauma for at least one month. Participants will be instructed to localize a sound emitted in their environment using a virtual reality setup.

SPHERE protocol : Spatial hearing performances test

Intervention Type DIAGNOSTIC_TEST

Participants will be instructed to localize a sound emitted in their environment using a virtual reality setup (SPHEAR protocol).

French Matrix Test : audiology test of speech in noise perception

Intervention Type DIAGNOSTIC_TEST

Intelligibility threshold is the signal-to-noise ratio (in decibels) for which the subject can repeat 50% of the words heard in a dichotic listening.

SSQ15 questionnaire of life : (The Speech, Spatial and Other Qualities of Hearing Scale)

Intervention Type BEHAVIORAL

The SSQ questionnaire is a clinical subjective scale that allows evaluating of hearing performances in daily life. The questionnaire is divided into 3 main items (A: speech; B: spatial hearing; C: other qualities of hearing) comprising questions with rating scores out of ten.

Normal hearing volunteers (control group)

Person without known hearing loss.

SPHERE protocol : Spatial hearing performances test

Intervention Type DIAGNOSTIC_TEST

Participants will be instructed to localize a sound emitted in their environment using a virtual reality setup (SPHEAR protocol).

French Matrix Test : audiology test of speech in noise perception

Intervention Type DIAGNOSTIC_TEST

Intelligibility threshold is the signal-to-noise ratio (in decibels) for which the subject can repeat 50% of the words heard in a dichotic listening.

SSQ15 questionnaire of life : (The Speech, Spatial and Other Qualities of Hearing Scale)

Intervention Type BEHAVIORAL

The SSQ questionnaire is a clinical subjective scale that allows evaluating of hearing performances in daily life. The questionnaire is divided into 3 main items (A: speech; B: spatial hearing; C: other qualities of hearing) comprising questions with rating scores out of ten.

Interventions

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SPHERE protocol : Spatial hearing performances test

Participants will be instructed to localize a sound emitted in their environment using a virtual reality setup (SPHEAR protocol).

Intervention Type DIAGNOSTIC_TEST

French Matrix Test : audiology test of speech in noise perception

Intelligibility threshold is the signal-to-noise ratio (in decibels) for which the subject can repeat 50% of the words heard in a dichotic listening.

Intervention Type DIAGNOSTIC_TEST

SSQ15 questionnaire of life : (The Speech, Spatial and Other Qualities of Hearing Scale)

The SSQ questionnaire is a clinical subjective scale that allows evaluating of hearing performances in daily life. The questionnaire is divided into 3 main items (A: speech; B: spatial hearing; C: other qualities of hearing) comprising questions with rating scores out of ten.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

acoustic traumatized military group :

* Age between 18 and 65 inclusive
* Active or reserve military personnel
* Diagnosis of noise trauma for at least one month
* Regularly followed up in the ENT department of the Desgenettes Army Training Hospital in Lyon or in the medical offices of the Army Medical Centers.
* Able to understand the experimental instructions
* Affiliated to a social security scheme
* Having been informed of the study and having given their agreement to participate normal hearing group :
* Age between 18 and 65 years inclusive
* Able to understand the experimental instructions
* Affiliated to a social security scheme
* Having been informed of the study and given their agreement to participate

Exclusion Criteria

* Known current or past neurological or psychiatric disorder
* Oculomotor/visual disorder
* Bilateral vestibular areflexia
* Person under court protection, guardianship or curatorship
* Pregnant or breastfeeding woman
* Known hearing loss for normal hearing group
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Hospices Civils de Lyon

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Hopital Edouard Herriot

Lyon, , France

Site Status RECRUITING

Countries

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France

Central Contacts

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Eric Truy, Pr

Role: CONTACT

+33 4 72 11 04 92

Marjolaine Beaudoin

Role: CONTACT

+ 33 4 72 11 05 18

Facility Contacts

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ERIC TRUY, MD

Role: primary

+ 33 4 72 11 05 18

ERIC TRUY, MD

Role: backup

Other Identifiers

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69HCL21_0692

Identifier Type: -

Identifier Source: org_study_id

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