Differential effects of childhood abuse and neglect: mediation by posttraumatic distress in neurotic disorder and negative symptoms in schizophrenia?

Dissociation, though understood as a response to trauma, lacks a proven etiology. The assumption of a dose-response relationship between trauma, dissociation and Schneiderian symptoms led to the proposal of a dissociative subtype of schizophrenia characterized by severe child maltreatment, dissociation and psychosis. Child maltreatment and dissociation are common features of neurotic disorders as well, and the link between trauma, dissociation, and hallucinations is not specific for schizophrenia.

[The Operationalized Psychodynamic Diagnostics System (OPD-2): validity of the Axis I "Experience of illness and prerequisites for treatment"].

The Operationalized Psychodynamic Diagnostics System (OPD) was introduced in order to allow for operationalized and reproducible psychoanalytic diagnoses. A revised version of the instrument was published in 2006. Validation studies are lacking for its Axis I, in particular.