[The post-traumatic nightmare or the ghost of past trauma].

The post-traumatic nightmare is the reliving of traumatic scenes during sleep and is linked to post-traumatic stress disorder. Unlike other forms of dreams, it can happen at any stage of sleep, invasively, and makes the person relive their traumatic scenario, which can plunge them into a state of terror and shock. Post-traumatic nightmares thereby maintain and reactivate the traumatic memory. However, narration techniques can lead to a marked improvement and even the disappearance of these nightmares.