The right answer is Electroconvulsive therapy.
The severe depressions are treated with drugs with many side effects, the advent of electroconvulsive therapy has been designed to treat patients who do not tolerate such drugs as Jane.
Electroconvulsive Therapy (ECT), formerly called seismotherapy and more commonly known as electroconvulsive therapy, is an electrical treatment method used in psychiatry to deliver variable intensity electrical current to the scalp. Performed in principle under general anesthesia, the ECT triggers a seizure of epilepsy type grand mal. This technique makes it possible to improve certain psychiatric pathologies that are resistant to drug and psychotherapeutic treatments, such as severe depression. However, the mechanisms of action are still poorly understood, and the therapeutic effects of ECT remain to be elucidated.