Findings from the British Columbia Health Surveillance Registry revealed information about the age specific prevalence of mental retardation with no known etiology; association of mild and profound retardation with microcephalus, hydrocephalus, cerebral palsy, or epilepsy; and survival rates. (Author/CL)

All Ss' accuracy decreased with increasing task difficulty. Accuracy of nonretarded Ss did not differ as a function of visual status. Blind retarded Ss were more accurate than were sighted retarded Ss. (Author)

Investigation of the reinforcing properties of vestibular stimulation with five multiply disabled severely retarded young children indicated that vestibular stimulation (10 seconds of swinging) was reinforcing to all subjects and was preferred (over food, praise, visual, and auditory stimulation) by four of the five children. (Author/DB)

Three experiments were conducted in an investigation of information-processing capabilities of mentally retarded adults, nonretarded children (mental age control), and nonretarded adults (chronological age control). Findings support the theory of a structural defect in mentally retarded persons that results in slow information processing.…

Serum immunoglobulin levels were measured in 20 patients with Down's syndrome (mean age 23 years) and 16 mentally retarded cerebral palsy control patients (mean age 25 years). (Author)

In Study 1 the aggressive behavior of a deaf/blind adolescent was eliminated through a differential reinforcement of other behavior (DRO) procedure combined with a reinforcer cueing technique and brief time-out. In Study 2 DRO reduced stereotypic eye-pressing by a young blind hearing-impaired child. (Author/CL)

Chromosomal abnormalities, some appearing in a stepwise clonal evoluation, were found in five Down's syndrome patients (35 weeks to 12 years old), four with acute leukemia and one with abnormal regulation of leukopoiesis. (Author/SBH)

Direct-care and professional staff serving profoundly and multiply disabed persons in small community settings or in a large specialty hospital generally expressed positive attitudes regarding jobs and resident care. Staff members who worked with the most disabled residents did not differ from employees serving profoundly but relatively less…

Regular-class elementary students (N=240) were questioned about their attitudes toward integrated multiply handicapped children. Factor analysis of the attitudes questionnaire revealed four dimensions of attitudes: causal-contact, contact-desire, deviance-tolerance, and peer acceptance. The effects of sex, grade (or age), and integrated school…