The TMS or EMT device consists of a coil connected to a capacitor that generates a great electromagnetic field. As the current flows through the coil, a magnetic field up to 2 tesla is generated. The flow of this great magnetic field that has been generated alters the electrochemical functioning of neighboring brain cells through the faraday induction process.

The procedure is to place a cap, with which certain coordinates are traced to place the "8"-shaped coil on certain areas of the skull. To treat depression, the area that is stimulated is the prefrontal dorsolateral cortex, which, when stimulated, it will stimulate in turn the limbic system, an area of the brain that is essential in the genesis of depression. The coil generates a very powerful electromagnetic discharge. The discharge generates a noise of moderate intensity, so earplugs are worn. A slight tapping on the skull may also be felt. You will be awake during the procedure, and will be able to talk, read or listen to music, or to relax and sleep.

The procedure includes 2 daily sessions approximately 20 minutes each, with a 30-minute break between them. It is performed for 10 days, with a rest period of 2 days between the first 5 days and the second 5 days. There are 20 sessions in total.