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)

It was found, among other things, that neither the presence of congenital heart disease, nor diabetes, nor intercurrent illness appeared to have any effect on the development of seizures. The age groups with the lowest proportion of EEG abnormalities were 25-34 years (48.7 percent abnormal) and 35-44 years (54.1 percent abnormal). (Author/DLS)

Among the findings were that there was no significant difference in performance between Down's syndrome, other mentally handicapped, and normal Ss matched for mental age, when extraneous developmental factors were eliminated; and that there was no relationship between mental age and visual perception in any group. (DLS)

The findings showed that the stimulated group scored higher on both the intelligence and the developmental tests, particularly on personal-social and speech development. In addition, school placement at the age of five years suggested that the experimental Ss were more easily integrated into the normal community. (Author/DLS)