Our purpose in this cross-sectional study with 1,598 adult clients who had intellectual disabilities was to obtain valid prevalences of sensory impairments and to identify associations. The diagnoses were made through ophthalmologic and audiometric assessments, applying WHO/IASSID definitions. Re-weighted prevalences were 5.0% (95% CI 3.9-6.2%)…

Autism is currently viewed as a spectrum condition that includes strikingly different severity levels; IQ is consistently described as one of the primary aspects of the heterogeneity in autism. To investigate the possibility of more than one distinct subtype of autism based on IQ, both latent class analysis and taxometrics methods were used to…

The nature and severity of dynamic risk factors among a group of 87 adult male sexual abusers with intellectual disabilities were examined as was the psychometric properties of a new scale designed to measure these risk factors. The Treatment Intervention and Progress Scale for Sexual Abusers with Intellectual Disabilities (TIPS-ID) is composed of…

The characteristic slowness of movement initiation and execution in adult individuals with mental retardation may be driven by the slower frequency profile of the dynamics of the system. To investigate this hypothesis, we examined the resting and postural finger tremor frequency profile (single and dual limb) of adults as a function of level of…

Evaluation of a Michigan program to integrate persons with developmental disabilities into the community evaluated variables including involvement of allies in planning futures, number of people with disabilities residing in each home, proportion of earned income, level of disability, and level of mobility. Earned income was the variable that most…

Our purpose in this exploratory investigation was to examine the relationship between degree of impairment in grammatical morpheme comprehension and event-related potential measures of differentiated processing of speech syllables in 10 children with Down syndrome. Results strongly support the hypothesized association. Graphs of the association…

Expressed emotion measures the emotional climate of the family and is predictive of symptom levels in a range of medical and psychiatric conditions. This study extends the investigation of the effects of expressed emotion to families of individuals with autism. A sample of 149 mothers co-residing with their adolescent or adult child with autism…

A study of 168 residents at state facilities for persons with mental retardation used the Diagnostic Assessment for the Severely Handicapped (DASH) to investigate the prevalence of psychopathology in younger and older adults with severe and profound mental retardation. Results found frequency ratings were similar for both age groups, but older…

Various aspects of epilepsy were studied in 78 children with mental retardation from 1989-1994. Epilepsy remained uncontrolled in 28% of cases, two-year remission was achieved by 26 percent, and mortality was 12% during the study period. Associated cerebral palsy was the most important single risk factor for severe epilepsy. (Author/CR)

This study compared maladaptive behavior in 23 people with Prader-Willi syndrome due to paternal deletion and in 23 age- and gender-matched subjects with maternal uniparental disomy. Controlling for IQs, the deletion cases showed significantly higher maladaptive ratings, more symptom-related distress, and more behavior problems. Findings suggest a…

Two studies compared performance on conditional and trial-unique delayed identity matching-to-sample procedures with five subjects having moderate to severe mental retardation and four subjects with mild mental retardation. Across the studies, six of nine subjects showed lower delayed-matching accuracy when fewer rather than more stimuli were…

The cumulative incidence of mental retardation in children born from 1976 through 1980 in Rochester, Minnesota, (n=5,919) was estimated from school and community medical records. Thirty children were classified with mental retardation, for a cumulative incidence of 9.1 per 1,000 by age 8. Gender differences in the incidence of mild and severe…

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,…

Emotional factors were studied in 30 adults with Down's syndrome, 18 controls with Alzheimer disease, and 25 elderly controls without mental retardation. Primary emotional factors separating Down's syndrome and Alzheimer disease groups from elderly control subjects without mental retardation were indifference, pragnosia, and inappropriateness.…

Clinical and neurophysiological findings for 28 patients (mean age 15 years) with mental retardation, autism, and epilepsy were described, including classification of seizure type and epileptic syndrome, etiology, severity of autism and epilepsy, electroencephalography findings, and neuroimaging findings. No particular epileptic syndrome…