Figure 1

Case formulation – (Persistent PTSD, adapted from Ehlers and Clark [6]). Case formulation following the persistent PTSD model of Ehlers and Clark [6]. It is suggested that the patient is processing the traumatic information in a way which a sense of immediate threat is perpetuated through negative appraisals of trauma or its consequences and through the nature of the traumatic experience itself. Peri-traumatic influences that operate at encoding, affect the nature of the trauma memory. The memory of the event is poorly elaborated, not given a complete context in time and place, and inadequately integrated into the general database of autobiographical knowledge. Triggers and ruminations serve to re-enact the traumatic information while symptoms and maladaptive coping strategies form a vicious circle. Memories are encoded in the SAM rather than the VAM system, thus preventing cognitive re-appraisal and eventual overcoming of traumatic experience [4].