The Brai2n clinic investigates and attempts to treat any neurological disorder where other treatments have failed or are insufficiently successful, especially by the use of neuromodulation. Four main kinds of neuromodulation are used: neurobiofeedback, transcranial direct current stimulation, transcranial magnetic stimulation and implantation of electrodes in and onto the brain. Some of the disorders investigated and treated at BRAI²N are tinnitus, pain, inclusive of fibromyalgia, chronic fatigue, …