«The assessment of EMDR* to treat post-traumatic-stress-disorder » Involvement of corticotropic and sympathetic axes.

The main objective is to compare the effectiveness of EMDR psychotherapy and a supportive psychotherapy in chronic post-traumatic stress disorder patients, through a pragmatic-trial based on a daily practice of a psychiatry sector. Secondary objectives are 1)To study the link between diurnal salivary cortisol secretion and post traumatic symptoms 11)Over all the participants in the survey both at the inclusion and the 3 months visits 12)Over all the EMDR group participants, one year after the beginning of the cares. 2)To study the link between salivary cortisol levels during the EMDR sessions and post traumatic symptoms at 3 months (group 1) 3)To study the link between neurovegetative excitation regulation during the EMDR sessions and post traumatic symptoms at 3 months (group 1) 4)To assess the EMDR psychotherapy effect on a midterm, one year after the first EMDR session.