Current prescribing preferences among relevant experts regarding the use of psychotropic medication for the management of behavior problems in adults with intellectual disabilities in the absence of a diagnosed psychiatric illness was defined. We used a questionnaire design to synthesize the preferences of a large group, namely, clinical…

This article introduces this special issue focused on application of guidelines based on the consensus of experts to the treatment of psychiatric and behavioral problems in persons with mental retardation. It explains the method of developing the guidelines, the limitations and advantages of the guidelines, and the organization of the guidelines.…

The cytogenetic survey of 67 individuals previously identified as having mental retardation and autistic behaviors revealed only 1.5 percent with the fragile X chromosome. The finding suggests that most persons with fragile X syndrome do not have autistic behaviors severe enough to be identified as a secondary psychiatric diagnosis. (Author/DB)

The reliability of diagnoses of mental retardation severity was examined by comparing psychiatric and psychological case records of 126 dually diagnosed (mental retardation and psychiatric disorder) clients. Overall chance-corrected agreement was 0.47. Results suggested that the reliability of diagnostic decisions may be best evaluated by analysis…

This paper considers key properties of behavioral phenotypes of mental retardation syndromes, including within-syndrome variability and between-syndrome similarities and qualitative differences. The "new genetics" research requires combining data from three strategies: (1) a psychiatric approach, (2) psychometric methods, and (3) syndrome-specific…

The fourth in seven sets of guidelines based on the consensus of experts in the treatment of psychiatric and behavioral problems in mental retardation (MR) focuses on medication treatment. Guidelines cover strategies of medication management, when to include a medication in the initial treatment plan, and reasons for long-term medication…

The fifth in seven sets of guidelines based on the consensus of experts in the treatment of psychiatric and behavioral problems in mental retardation (MR) focuses on selection of medications. Guidelines cover selection of medications for psychiatric disorders, selection of medications for target symptoms, and preferred medications within different…

Fifty-eight tables provide a breakdown of answers to a survey responded to by 45 experts in the medication treatment of psychiatric and behavioral problems in people with mental retardation. Questions address treatment of specific disorders, ratings of various medications for specific disorders or symptoms, and preferences in mood stabilizers,…

A quantitative method for typing psychopathology of youngsters with mental retardation was assessed. Parents of 601 students in special educational placements rated them with the ABC. The sample was randomly divided into two subgroups. We used Ward's hierarchical method of cluster analysis and derived eight clusters in Subsample 1 and satisfactory…

The symptomatology of 93 psychiatric inpatients with mild mental retardation was compared with that of a matched sample of inpatients without mental retardation. Patients with retardation displayed more outwardly directed and less inwardly directed symptoms; more symptoms involving action than thought; and psychotic symptom pictures which more…

Twelve tables provide a breakdown of answers to a survey responded to by 48 experts in the psychosocial treatment of psychiatric and behavioral problems in people with mental retardation. Questions address treatment of self-injurious or aggressive behavior, specific psychiatric disorders, specific target symptoms, use of applied behavior analysis…

This survey of nine journals identified two distinct cultures in mental retardation research: classification by level of retardation (usually by psychologists and special educators) or etiology (usually by geneticists and psychiatric researchers). The paper discusses varied effects that genetic etiology may have on behavior, issues in reconciling…

Six tables provide a breakdown of the answers to a survey responded to by 93 experts in the treatment of psychiatric and behavioral problems in people with mental retardation. Questions address confidence in diagnosing such disorders in this population, methods of evaluation, value of various rating scales, appropriateness of medication for…