Age

18–60

Sex

ALL

Healthy volunteers

Not accepted

Active substance use disorder / addiction
Current psychosis
Bipolar disorder
Borderline personality disorder
Current malignancy
Multiple sclerosis
Presence of a cardiac pacemaker
Known or confirmed pregnancy
Body Mass Index (BMI) greater than 35 kg/m²
Current treatment with, or planned administration during the hospital stay of, ketamine or electroconvulsive therapy (ECT)

Slow-Paced Breathing and Electrical Vagus Nerve Stimulation as Add-on Treatments for Depression