This study attempted to ameliorate the educational deficits of infants using structured tutorial programs of language and concept training in the home. It was part of a larger project whose purpose was to determine the age at which intervention will produce maximum acceleration of cognitive development. Subjects were 20 disadvantaged 8- and…

The development of and relationship between early language, symbolic play, sensorimotor skills, and social development were examined in a longitudinal study conducted in Japan with two young autistic males who were observed from the approximate ages of 2 to 4 years in clinic, day care, and home settings. One child acquired speech; the other did…