The oral comprehension (OC) of a second language (L2) involves different cognitive processes, specially during the learning phase. This study aims at investigating the neurophysiological functioning of different steps involved in this oral understanding.
Here, the investigators seek for the different neurophysiological processes involved in OC according to the level of understanding (2 levels) and its different phases (fluid, hindered and metacognitive feedback). This study therefore requires three different research methodologies : 1. an interactive system dedicated to the boundary delimitations of obstacles during OC 2. an investigation of the autonomic nervous system responses (measurement of electrodermal activity and heart rate variability) that will likely occur differently during different phases of the OC process 3. an investigation of the central responses (through fMRI technique), coupled with autonomous responses, that will identify the different neural networks in the different stages of the OC process.
Study Type
OBSERVATIONAL
Enrollment
70
behavioral measurements will be performed during the oral comprehension testing
physiologic (autonomic) measurements will be performed during the oral comprehension testing
central (brain) measurements will be performed during the oral comprehension testing
University Hospital Grenoble
Grenoble, France
RECRUITINGSympathetic activity
ElectroDermal Activity (EDA) measured in µS
Time frame: up to 3 months following the language profile completion
Parasympathetic activity
Heart Rate Variability (HRV) measured using the relative power of the high-frequency (HF) component of the HRV (in % of the total power)
Time frame: up to 3 months following the language profile completion
Activated brain regions demonstrating brain activity
fMRI brain imaging data will be analyzed using Statistical Parametric Mapping (SPM12).
Time frame: up to 6 months following the language profile completion
Correlations between sympathetic and parasympathetic activity
correlation between EDA components measured in µS and relative power of the HF-HRV
Time frame: up to 3 months following the language profile completion
Interaction between sympathetic activity and brain activity
Correlation of EDA (µS) with fMRI brain imaging data
Time frame: up to 6 months following the acquisition of language profile
Interaction between parasympathetic activity and brain activity
Correlation of relative HF component of HRV with the fMRI brain imaging data
Time frame: up to 6 months following the acquisition of language profile
Linguistic evaluation
Linguistic processes are assessed by performance score on the following tests: verbal fluency test in first language (number of items found in 1 min) verbal fluency test in second language (number of items found in 1 min)
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Time frame: up to 1 month following the acquisition of language profile
Cognitive evaluation of executive functions
Cognitive evaluation assessed by the following tests: Trail Making Test (TMT-A and TMT-B) scores. Time duration (in seconds) for each subtest. Shortest duration meaning efficient executive functions
Time frame: up to 1 month following the acquisition of language profile
Cognitive evaluation of short term memory
WAIS4 subtest (measured by scores)
Time frame: up to 1 month following the acquisition of language profile