It is not about depersonalization disorder but dissociation in general based on a study of normal, PTSD, dissociative subtype of PTSD and DID. These have recently also been compared in a large evaluation of all studies done to date with depersonalization disorder and dissociation in borderline disorder. There are significant differences found between the conditions . Depersonalization disorder is mostly related to the dissociative subtype of PTSD but even here is the differences. Many with depersonalization get it form drug introduction and the is not the case in the other conditions. drug can change brain oscillators and networks for a time and make a state of dissociation. Disintegration of brain networks is seen in most of them. Brain networks and normal function is reflected in normal brain qEEG with normal brain oscillators where some are generated in the thalamus. Thalamus is seen as central for sensory integration. Newer brain stimulation and the interventions in development is more individualized and have the ambition to reset brain oscillators and thereby normalized brain networks.