"Another prominent superego pathology theory is Kernberg’s theory of “borderline personality organization (BPO)”. BPO theory is particularly helpful in terms of understanding how internal conditions across the continuum of personality produce a tendency toward criminal behavior. According to Kernnberg (1966, 1967, 1984, 1985a, 1985b, 1992), personality is organized by capacity for reality testing and unconscious defensive process. Psychotic personality organization is characterized by absence of reality testing and the use of primitive defenses, borderline personality organization by capacity for reality testing and use of primitive defenses, and neurotic personality organization by capacity for reality testing and use of higher-level defenses (Figure 2.1). Kernberg’s “primitive defenses” center around the lower level mechanism of “splitting”, the related mechanisms of “primitive idealization, projective identification, denial, omnipotence,” and “devaluation”. Splitting is a genotypic defensive operation that is expressed through the phenotypic defensive process of dissociation. This defensive operation is pathognomic of general borderline ego functioning, particularly in the psychopath (Meloy, 1988). Kernberg (1976) views splitting as alternating ego states, each consisting of completely separate complex psychic manifestations, a fundamental feature of the borderline ego functioning experienced by the narcissistic, histrionic, borderline, and psychopathic personalities. Splitting is a defensive process exemplified by lack of personality integration, and the coexistence of distinct cohesive personality attitudes with conflicting aims, goals, and moral and aesthetic values (Kohut, 1971). Put simply, splitting is the view of oneself and others as all good or all bad with an inability to reconcile the two identities."