DARPA has allocated funds to two teams of specialists for preliminary tests of brain implants that can identify patterns that influence a bad mood. These devices generate impulses that "shock" the brain, bringing it back to normal.
Through this development, doctors hope to create a new treatment for previously incurable mental disorders. In particular, brain-stimulating brain implants are already being used in the treatment of Parkinson's disease.
However, evidence that constant stimulation of specific areas of the brain helps with chronic depression has not yet been confirmed. The study showed that 90% of patients who received brain stimulation for a year did not improve. The idea of the new technique is to influence the brain not constantly, but periodically.
The ultimate goal of research is to treat depression and PTSD. Despite this, a group of scientists at the University of Southern California is trying a new technique for people with epilepsy, and colleagues at Massachusetts General Hospital are working on creating algorithms that will focus attention on a specific task.
It is obvious that scientists will not be able to avoid a whole set of ethical problems. For example, by stimulating areas of the brain that affect mood, one can inadvertently create the effect of "artificial" happiness, which drowns out all other equally important feelings.