A similar version was presented at a joint session of the American Academy on Mental Retardation and the American Association on Mental Deficiency (May, 1969). (Author)

Identified shortly after birth, Down's syndrome babies will represent a substantial number of infants in need of early intervention services. Direct contact with parents of Down's syndrome infants can provide professionals with opportunities to share new genetic findings that may assist parents in adjusting to the birth of their handicapped child.…

The findings provided tentative support for the notion that Down syndrome children suffer a specific deficit in some areas of motor coordination. (Author)

The structure of the spontaneous language samples of nine Down's syndrome children (7 to 12 years old) was compared to that of nine nonretarded children, using the generative semantic model proposed by W. Chate. Language samples were analyzed in terms of mean length of utterance and semantic structure. (Author/SBH)

An analysis of the mother's speech suggested that her mean length of utterance was unrelated to the infant's age. More object referencing and more directions were given as the child grew older. (Author/DLS)

Distributions of the serum immunoglobulins (IgM), of T and B lymphocytes, and subpopulations of B lymphocytes were studied in children and institutionalized adults with Down's syndrome and appropriate mentally retarded controls. (Author)