Sound waves have entered the coma war Chinese researchers are testing a method based on ultrasound waves, which by stimulating the deep parts of the brain, seeks to restore consciousness in brain-damaged patients. In this method, focused sound waves pass through the skull without the need for surgery and are aimed at the thalamus region; A part of the brain that plays an important role in communication between neural networks and maintaining consciousness. In a preliminary study of 24 patients, 13 showed improvements in alertness-related behaviors after four weeks of treatment. Each patient was treated in three sessions of 20 minutes per week. Despite the promising results, this technology is still experimental and requires larger and controlled studies to prove its effectiveness and the durability of the results. - Link.