Evaluation of the Concordance Between Measures Obtained by a Medical Device for Emotional Monitoring (EMOCARE) and the Patient Health Questionnaire (PHQ-9) Score in Patients With Mild to Severe Depressive Episode

Inclusion Criteria: * Patient of both sexes aged 18 or over. * Outpatient with unipolar depression (regardless of the time of the episode) (major depressive disorder). * Patient with an episode of major depression supported by PHQ-9 score greater than or equal to 5. * Patient with an episode of major depression supported by MADRS score greater than or equal to 7. * Patient accustomed to regular use of a smartphone and/or computer * Patient who, in the opinion of the investigator, will comply with the requirements of the protocol. * Patient affiliated to a social security scheme or beneficiary of such a scheme. * Patient who has received full information about how the clinical investigation shall be conducted and has signed an informed consent form. * Patient who reads and understands French. * Patient who has undergone clinical screening adapted to the clinical investigation. Exclusion Criteria: * Patient treated with antipsychotic drugs. * Patient with an unstable pathology that could interfere with the study. * Patient unable to communicate or cooperate with the investigator due to a low mental level, language difficulties or impaired cerebral function. * Patient with an active suicidal tendency or patient who has had a suicidal episode in the last 6 months * Patients with borderline personality disorders. * Patient with a contra-indication to the product(s) under evaluation. * Woman of childbearing age without effective contraception. * Pregnant woman, birthing or breastfeeding mother * Minor (not emancipated) * Incapacitated person