Inclusion Criteria:  present symptoms related to the post-traumatic sequelae of having had an experience of sexual abuse in childhood. The traumatic experience is accessible to explicit memory. The participant has shared her experience at least in a context of containment and is able to talk about it.  Exclusion Criteria:  Enfermedad mental grave. Extreme scores on both the personality questionnaire and the Psychopathology questionnaire in the indicator of global severity, paranoid ideation, and psychoticism. Any problem of addiction to alcohol or other substances at the time of the evaluation, etc. that may interfere with adherence to treatment and group dynamics. Being currently in treatment to treat the traumatic experience. Present severe dissociative symptoms, beyond those typical of the PTSD diagnosis. Extreme scores on the dissociation scale in the pathological ideation items.