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Depression is a common condition that has a significant disease burden on those affected. While medication and psychotherapy are very effective for many patients, they do not work for everyone and can cause some undesirable side-effects, such as gastrointestinal symptoms (e.g., nausea), decreased sex drive or weight gain.
Non-invasive brain stimulation techniques, including transcranial direct current stimulation (tDCS), represent an alternative or add-on treatment option for depression that may have fewer side effects. Treatment with tDCS involves the application of a mild electrical current to the scalp to change how excitable certain parts of the brain are.
Meta-analyses – including two of my own (Mutz J….