ECT - Electro-Convulsive Therapy
ECT is an old yet effective treatment for psychosis and mood disorders. It s frowned on somewhat due to the medias depiction of the procedure which is typically very innaccurate and sensationalist. Nowadays, the procedure is a very far cry from Hollywood depiction. You're knocked under, receive mild shocks to the brain and wake up 15 minutes later probably with the side effects of confusion, fear and memory loss. These usually clear within a few hours with the exception of the memory loss which may take weeks or months to mend - sometimes, you won't get it back at all. Emotional flattening is another typical side effect of the treatment. Muscle relaxants are also administered during treatment to prevent injury.
"In electroconvulsive treatment (ECT) a convulsion is produced in a person by passing an electric current through his brain. The duration of the convulsive activity in the brain appears to determine its therapeutic effects, while the intensity of the electrical stimulus plays a role in determining its unwanted side effects, particularly the short-term memory impairment in the patient immediately after treatment. Several controlled trials have shown that ECT is effective in treating patients suffering from a depressive illness with melancholia." - Encyclopædia Britannica