This study examined the development of imitation under naturalistic conditions. Participating were 320 parents, who provided diary records of imitation by their 12-, 15-, and 18-month-old infants over a 7-day period. Approximately half of the infants were first-borns and half had older siblings. The findings indicated that infants of all ages…

The study sought to examine developmental processes of substitution in the pretend play of Down's syndrome children and to clarify the onset mechanism of subskills in decontextualization, which refers to the progress from imitation to substitution and then to invention. Eighteen Japanese children, aged 29-55 months, with Down's syndrome were given…

This study examined the functions of structured modeling and mother-child play settings upon the development of pretend actions in young Down Syndrome children. Subjects were 30 pairs of Japanese children, with a developmental age range of 12-35 months, and their mothers. The children were individually administered five phases of premodeling,…

Tested a proposed developmental pathway for toddlers' mastery of skills in generating non-ritualized forms of cooperative coordinated action with peers. Studied nonverbal imitative acts among U.S. toddlers and toddlers of the Seltaman people of Papua New Guinea. Found that ready imitation of one another emerged during the same developmental period…

This research paper describes various aspects of the 12-day July Festival and period of preparation for it in one valley on the island of 'Ua Pou, Marquesas Islands, French Polynesia. This case study is of a well-delineated cultural event which exemplifies many themes presented in "Patterns of Social Interaction and Concepts of…