The investigators treated 10 patients with autobiographical traumatic memories using finger tapping tasks, (Motor Interference Therapy \<TIM\>)in a pilot study with amazing results and a solid size effect. The investigators decided to challenge the intervention using a control task (Jacobson´s progressive relaxation exercises) The hypothesis consists in achieving a 30% reduction of the distress, (measured with Visual Analogue Scale) by using TIM compared with the control task. Patients with traumatic memories will be enrolled in to one of two treatment modalities. The first group will receIve motor interference therapy and the second group will receive a control task (relaxation exercises). Both groups will be assessed using the Spanish version of the PTSD Symptom Severity Scale-Revised (EGS-R), the visual analogue scale (EQ-VAS) from EuroQol 5D (EQ-5D), and a simple visual-analogue scale (VAS) immediately after, a week after, a month after and six months after the treatment for follow up.