Sensory-motor Interactions in the Perception of Vowels: a Study in Repetition - Suppression

Study Overview
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Brief Summary
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The aim of our study is to show by fMRI the involvement of the motor system in the perception of speech, and more particularly how this implication is modulated by the degree of prototypicity of the stimuli.

Detailed Description
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Each participant will undergo two visits: Phase 1: The Gipsa-Lab Laboratory's Department of Speech and Cognition. This first visit will make it possible to make recordings of their vowel productions and to verify that the participants correspond to the criteria necessary for the study (passing the Edinburgh manual laterality test and auditory thresholds checked using a  An audiogram). It will also be an opportunity to provide them with the consent documents and the fact sheet, which will give them time to read it before the MRI exam. The duration of this first visit will be approximately 1 hour. Phase 2: fMRI review in the 3Tesla MRI Unit at the Grenoble University Hospital Center. Participants will first undergo a medical examination in order to verify their absence of contraindication to the MRI examination. At the end of this medical examination, the consent of participation will be signed. The participants will then be able to carry out the MRI examination for a duration of about 1h15, then the behavioral judgment test of perceptual distance. The total duration of this second visit will be approximately 1h45.

Official Title
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Sensory-motor Interactions in the Perception of Vowels: a Study in Repetition - Suppression

Conditions
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Healthy

Intervention / Treatment
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* Other: MRI functional


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Medicall exam before MRI Pregnant Women Patients aged 18-45 years, Right-handed without neurologic and/or psychiatric troubles normal audition Audition normale French mother tongue Social security affiliation Exclusion Criteria: protected person MRI contraindication claustrophobia respirtaory and cardiovascular pathology toxic substances taking

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 45 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: Basic Science
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Healthy Volonteers<br> | Other: MRI functional<br>* vowels records and MRI session<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Evaluate the involvement of the speech motor system in the perception of vowels, using functional magnetic resonance imaging (fMRI). | fMRI measured | One hour and forty five minutes | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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MRI, Functional