2. Meeting with the criteria of major depressive disorder in the Diagnostic and Statistical Manual of Mental Disorders (DSM)-5;
3. Scored 20 or higher on the Hamilton's Depression Scale with 24 items (HAMD-24);
4. With enough audio-visual ability and comprehensive ability to accomplish the visits;
5. Be necessary and suitable to accept the treatment of antidepressants;
6. Scored less than 14 on Hamilton's Anxiety Scale (HAMA) and scored less than 14 on the Hypomania Symptom Checklist-32 (HCL-32);
7. With 2 or more atypical symptoms including significant weight gain or increase in appetite, hypersomnia, leaden paralysis, and a long-standing pattern of interpersonal rejection sensitivity that results in significant social or occupational impairment.
You may not be if
1. Severe medical or neurological problems;
2. Previous mania or hypomania episodes;
3. Female patients who are pregnant, planning to be pregnant or breastfeeding;
4. Actively suicide ascertained by research psychiatrist or 3rd item of HAMD scored≥3(suicidality);
5. Had electroconvulsive therapy, modified electroconvulsive therapy or repetitive transcranial magnetic stimulation in the past 6 months;
6. Experienced severe personality disorder, mental retardation, anorexia/bulimia nervosa.