Three case studies of patients (relatives) suffering from a chromosomal aberration (translocation between one of the C group chromosomes and one of the G group chromosomes) resulting in severe mental retardation and skin malformations are reported. It was suggested that the anomaly is hereditary in nature (CD)

To determine whether moderate enlargement of the third brain ventricle or the temporal horns of the lateral ventricles was associated with hypothalamic dysfunction, 15 mentally retarded Ss (ages 12-25 years) with such characteristics were studies. (DLS)

A genetic survey of mongolism in Serbia (Yugoslavia) is presented. Chromosomes of 616 subjects are examined for the survey. (CD)

Thirty-seven palm prints and 30 sole prints of people with 9p trisomy (a chromosomal anomaly associated with abnormal limb development) were analysed with respect to frequency distribution of loops and triradii on palms, soles, and fingertips, as well as of the total pattern types. (Author)

Minutiae, ends and junctions of finger tip or palm lines, were analyzed in a sample of 115 normal adult individuals, 40 cases of Down's syndrome, and 130 normal children (aged 6 to 14 years). (DB)

Compared were psychomotor test battery scores of 272 institutionalized retarded subjects and 1500 mentally ill institutionalized patients ranging in age from approximately 10 to 60 years. (DB)

A mentally handicapped 12 year old boy with the features of Hallermann-Streiff syndrome (proportionate dwarfism, beaked nose, small mouth, dental abnormalities, severe visual handicap) is described. A review of the literature is also included. (CD)

The results supported the hypothesis that mentally handicapped children have a significant attraction to symmetrical arrangement, and that Down's syndrome children are more significantly attracted than other retarded children. (Author/DLS)

The use and validity of the Peabody Picture Vocabulary Test and the Slooson Intelligence Test as screening devices when compared to the Wechsler Intelligence Scale for Children was studied in 36 mentally retarded adolescents. (Author)

Information was collected from the files of 6,854 individuals registered with the Special Care Service in Northern Ireland in order to estimate the prevalence rate of mental subnormality in that country. (BD)