Don't be scared ... it is not a "Frankenstein treatment" in which the patient's head is opened and half his brain is removed so that he stops suffering.
The other day I saw a conference at TED (I'll put it to you later) in which a neurosurgeon talked about how they have completely identified the brain according to the function it plays in us, that is, they know exactly which area of our brain controls language, movement, etc. Once these areas were identified, they have been able to get a person with Alzheimer's disease, for example, to keep active the parts of the brain that "turn off" with this disease.
How did they do it? With electricity. They implant small electrodes in the damaged area of the brain and are able to "modulate" that area until normality is restored.
They also tested this new treatment in people with severe depression and whose treatments, psychotherapy and medication, were not effective. The results were the following:
When a person suffers from depression, there are certain areas of the brain with very low activity and one area in particular, an area related to sadness, which is very active. With the implantation of the electrodes, those areas with little or no activity are reactivated and the "sad zone" is lowered in activity to normal levels. Amazing right?
I leave you with the conference so that you can judge for yourself: