Speech
Conditions
Brief summary
The goal of this study is to investigate the preferential responses of speech neural systems in infants. The main question it aims to answer is to determine whether the oscillatory synchronization capacity is associated with children's language level (i.e. vocabulary). Participants will be presented with synthetically modulated stimuli at three frequency scales: 4 Hz, 5 Hz and 30 Hz.
Interventions
BEHAVIORALMagnetoencephalography (MEG)
Stimuli will be presented binaurally through headphones at 60 decibel sound pressure level (dB SPL). Conditions are presented in a pseudo-random order with an inter-stimulus interval of \ 800 ms on average (range: 600 ms to 1000 ms). The duration of the stimuli is fixed: 2 seconds, in order to guarantee a minimum number of cycles.
OTHERCognition development questionnaire
Computerised questionnaires completed by parents
Sponsors
Institut de l'Audition
Institut Pasteur
Study design
Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
6 Months to 10 Months
Healthy volunteers
Yes
Inclusion criteria
* be 6 or 10 months old (+/- 2 weeks) * have received age-appropriate information on the experiment * their legal guardians have received appropriate information and given their oral consent.
Exclusion criteria
* A neurological disorder (visual, auditory, motor, executive) * Developmental delay
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Significance of correlation between the delta (i.e. difference) of synchronization power estimated at 10- and 6-months of age and the delta of vocabulary level measured at 18months of age. | at 10-months, 6-months and 18-months of age |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| The equation for linear regression analysis used to estimate the amount of neuronal synchronization between auditory and visual perception systems according to the Coherence and the Synchrony of AV inputs | at 10- and 6-months of age | — |
| The equation for linear regression analysis used to estimate the variation in the amount of neuronal synchronization between 4 experimental conditions according to the Coherence and the Synchrony of AV inputs | at 10- and 6-months of age | 4 experimental conditions : AV synchronous coherent, AV asynchronous coherent, AV synchronous incoherent, and AV asynchronous incoherent |
Contacts
Primary ContactSophie Bouton, PhD
Backup ContactAnne-Lise Giraud, PhD
Outcome results
None listed