Cohort of Patients Suffering From Major Depressive Episode With Evaluation of Sleep, Circadian Rhythms and Psychiatric Disorders

Despite international efforts to identify biomarkers of depression, none has been transferred to clinical practice, neither for diagnosis, evolution, nor therapeutic response. This led us to build a French national cohort (through the clinical and research network named SoPsy within the French biological psychiatry society (AFPBN) and sleep society (SFRMS)), to better identify markers of sleep and biological rhythms and validate more homogeneous subgroups of patients, but also to specify the manifestations and pathogeneses of depressive disorders.

Inclusion Criteria: * Individuals with depressive episode characterized according to the DSM-5 criteria regardless of the associated characteristics and comorbidities. * Adult and child * Affiliated to a social security Exclusion Criteria: * don't understand or read french * Medical condition incompatible with administration of questionnaire * impossibility to give informed decision (subject in an emergency condition, etc.)