In this issue we present an exchange of views arising from the DSM-IV diagnostic criteria for delusions. Anchoring the discussion is an article by Drs. Mujica-Parodi and Sackeim in which they examine the DSM-IV requirement that to be classified as a delusion, a belief must be discordant with beliefs ordinarily accepted by the patient’s culture or subculture. They propose that an information-pro...

As a paradigm for abstract, nested time-references occurring in medical domain knowledge we analyze temporal diagnostic items of the Diagnostic and Statistic Manual of Mental Disorders (DSM{IV). Based on an elicitation of categories of DSM-IV time-references a formal approach to the representation of nested temporal references is proposed. Generic time-related concepts are introduced, which hav...

Objective: While DSM-IV Attention-deficit/hyperactivity disorder (ADHD) comorbid with antisocial behaviours identified by DSM-IV conduct disorder (CD) has been claimed as a ‘distinct subtype’, there is less information about the validity of a subtype based on the more prevalent comorbidity of oppositional defiant disorder (ODD). The present study investigated the associations of past ODD with p...

BACKGROUND The proposed posttraumatic stress disorder (PTSD) criteria for the International Classification of Diseases (ICD) 11th revision are simpler than the criteria in ICD-10, DSM-IV or DSM-5. The aim of this study was to evaluate the ICD-11 PTSD factor structure in samples of young people, and to compare PTSD prevalence rates and diagnostic agreement between the different diagnostic system...

BACKGROUND Classification of patients with pharmaceutical opioid use disorder and dependence varies depending on which definition is used. We compared how WHO's ICD-10 and proposed ICD-11 and the American Psychiatric Association's DSM-IV and DSM-5 classified individuals in a community-based sample of Australians with chronic non-cancer pain for which opioids have been prescribed. METHODS We s...

The Personality and Personality Disorders Work Group for the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) recommended substantial revisions to the personality disorders (PDs) section of DSM-IV-TR, proposing a hybrid categorical-dimensional model that represented PDs as combinations of core personality dysfunctions and various configurations of maladaptive persona...

Five alternative sets of diagnostic criteria for schizophrenia and related psychotic disorders are presented in the appendix following this report. They include the DSM-III-R criteria, the most recent version of the ICD-10 research criteria, and three new sets that have been proposed as options for DSM-IV. A multicenter field trial is currently gathering data that will allow researchers to comp...

Prevalence of posttraumatic stress disorder (PTSD) defined according to the American Psychiatric Association's Diagnostic and Statistical Manual fifth edition (DSM-5; 2013) and fourth edition (DSM-IV; 1994) was compared in a national sample of U.S. adults (N = 2,953) recruited from an online panel. Exposure to traumatic events, PTSD symptoms, and functional impairment were assessed online using...

There has been a substantial body of literature devoted to answering one question: Which latent model of posttraumatic stress disorder (PTSD) best represents PTSD's underlying dimensionality? This research summary will, therefore, focus on the literature pertaining to PTSD's latent structure as represented in the fourth (DSM-IV, 1994) to the fifth (DSM-5, 2013) edition of the DSM. This article ...

Nationally representative data from the Mexican National Comorbidity Survey are presented on the lifetime prevalence and age-of-onset (AOO) distributions of suicide ideation, plan and attempt and on temporally prior demographic and DSM-IV psychiatric risk factors. Lifetime ideation was reported by 8.1% of respondents, while 3.2% reported a lifetime plan and 2.7% a lifetime suicide attempt. Onse...