Instead of evoking seizures, as many predicted, this has acted as an anticonvulsant, allowing people to safely reduce their medications. Most of these patients are light sensitive. The first phase of the treatment desensitizes them to the light stimulation, at which time frontal EEG slowing is strongly decreased. The next phase of treatment involves systematic discovery and treatment of all other sites of EEG slowing on the scalp. There is no conscious learning or practicing involved.
Daily treatment is most effective and reduces total numbers of sessions needed.
People who have had additional lifelong multiple and complex functioning problems may easily need 100 sessions. Those who have been high functioning, prior to their trauma typically need close to 20 sessions. Follow-up of FNS PTSD patients five years post treatment show them typically to be continuing their progress without additional treatment. Since FNS is a non-psychotherapeutic procedure, it is always important for the patients to have competent, adjunctive psychotherapeutic treatment and support at a level commensurate with the seriousness of any behavioral problems. The treatment code for EDS is 90901.