Assessment of Language Disorders in Multiple Sclerosis Patients

Relapsing-Remitting Multiple Sclerosis and Secondary Progressive Multiple Sclerosis. Experimental tasks based on psycholinguistics and functional MRI are not standardized tests. To be able to interpret the results of patients, they must therefore be compared with healthy controls of the same age (+/-3 years) and level of education. This study will require the inclusion of cases and controls matched to these cases on the above characteristics. Patients who are seen in consultation or day hospitalization and who meet the inclusion and non-inclusion criteria will be offered the opportunity to participate in the study. Accompanying persons accompanying patients "matching" with included patients who meet the inclusion and non-inclusion criteria will also be offered the opportunity to participate in the study. Inclusion visit (D0) : * Completion of the HAD self-questionnaire * Validation of inclusion and exclusion criteria * Signature of consent * Collection of socio-demographic data to adjust standardized test results (age, gender, socio-economic and education level) * Completion of the computerized ECVB self-questionnaire with the help of a clinical research technician: only for cases * Scheduling of the HDJ assessment day (maximum 6 months after the inclusion visit) Visit 1 (assessment in HDJ) (D0 + 6 months maximum) : * Neurological examination of the patient and performance of an EDSS if necessary * Battery of standardised and normalised tests evaluating different cognitive functions (Annexes 1 and 2 to 9): only for cases * Experimental language tasks (see description in section 6): for cases and controls * Non-injected structural and functional encephalic MRI: only for cases with language impairment detected in the examination battery (and their matched controls)