Structural dissociation is not indiscriminate, but follows along the lines of the innate emotional systems, as described above (Panksepp, 1998). The "emotional personality" (EP) is directed by the defensive emotional (sub)systems in particular, and is characterized by fixation in the trauma, hypermnesia, somatosensory experiences of the trauma, retraction of the field of consciousness to the trauma and related stimuli, and disorientation to the present time.
The "apparently normal" personality ( ANP ) is directed by emotional systems related to daily life, including attachment. The primary function of the ANP is to adequately function in daily life, which would not be possible if unintegrated trauma was intruding.