Secondary structural dissociation involves one ANP and more than one EP. Examples of secondary structural dissociation are complex PTSD, complex forms of acute stress disorder, complex dissociative amnesia, complex somatoform disorders, some forms of trauma-relayed personality disorders, such as borderline personality disorder, and dissociative disorder not otherwise specified (DDNOS).. Secondary structural dissociation is characterized by divideness of two or more defensive subsystems. For example, there may be different EPs that are devoted to flight, fight or freeze, total submission, and so on. (Van der Hart et al., 2004). Gail, a patient of mine, does not have a personality disorder, but describes herself as a "changed person." She survived a horrific car accident that killed several others, and in which she was the driver. Someone not knowing her history might see her as a relatively normal, somewhat anxious and stiff person (ANP). It would not occur to this observer that only a year before, Gail had been a different person: fun-loving, spontaneous, flexible, and untroubled by frightening nightmares and constant anxiety. Fortunately, Gail has been willing to pay attention to her EPs; she has been able to put the process of integration in motion; and she has been able to heal. p134

SELFHOOD AND DISSOCIATIONThe patient with DID or dissociative disorder not otherwise specified (DDNOS) has used their capacity to psychologically remove themselves from repetitive and inescapable traumas in order to survive that which could easily lead to suicide or psychosis, and in order to eke some growth in what is an unsafe, frequently contradictory and emotionally barren environment.For a child dependent on a caregiver who also abuses her, the only way to maintain the attachment is to block information about the abuse from the mental mechanisms that control attachment and attachment behaviour.10 Thus, childhood abuse is more likely to be forgotten or otherwise made inaccessible if the abuse is perpetuated by a parent or other trusted caregiver.In the dissociative individual, ‘there is no uniting self which can remember to forget’. Rather than use repression to avoid traumatizing memories, he/she resorts to alterations in the self ‘as a central and coherent organization of experience. . . DID involves not just an alteration in content but, crucially, a change in the very structure of consciousness and the self’ (p. 187).29 There may be multiple representations of the self and of others.Middleton, Warwick. "Owning the past, claiming the present: perspectives on the treatment of dissociative patients." Australasian Psychiatry 13.1 (2005): 40-49.