 A new kind of intervention, that has been becoming popular in the past few years, is changing of brain wave pattern by the use of Neurofeedback EEG-NF. By using a closed circuit brain computer interface BCI, the patient receives feedback about his or hers brain activity via an external marker that is linked to his mental status. The feedback allows the patient modulation of brain activity in a designated area to which the practice is aimed. The practice lasts a few sessions, after which the patient can apply the technique without immediate feedback10,11. 