Age

18–59

Sex

ALL

Healthy volunteers

Not accepted

1. patients between 18 and 69 years
2. patients with a diagnosis of depression according to the SCID
3. score greater than or equal to 18 on the Hamilton Rating Scale 17-item version (equivalent to moderate or severe depressive episode)
4. agreement to participate in the study as recommended in the IC.

1. patients with psychiatric indication for hospitalization
2. patients with psychiatric comorbidity
3. patients with a diagnosis of personality disorder
4. presence of severe neurological or medical diseases such as neoplasms in activity, neurodegenerative diseases and chronic diseases uncompensated.

tVNS for Depression