Inclusion Criteria:  Cases: Patients aged between 45 to 64 years with severe to profound bilateral post-lingual sensorineural hearing loss with a maximum intelligibility of 70% (disyllabic words) in free-field silence with hearing aids at 60 dB SPL, current in french Controls: normal hearing subjects matched on age, sex and education level  Exclusion Criteria:  Associated disability that prevents the tests from being performed Past and current history of neurological and psychiatric disorders including meningitis Psychotropic drug treatment Vulnerable subject