This article provides a comparative analysis of studies in which symbolic play in children ages 1 through 3 was the major focus of a formal research strategy. The review provides readers with (1) information allowing more effective evaluation of research involving symbolic play and (2) background for designing or adopting play measurement…

This study examines the longitudinal relationships between mastery motivation and differentiated measures of intellectual development assessed at 1 and 3 1/2 years of age in a sample of 35 children (21 boys and 14 girls). At one year three types of mastery motivation were assessed using structured tasks: (1) producing effects (engaging in…

This paper presents an integrative perspective on infant development (based on a consideration of developmental data) which focuses on the function of the smile. From the earliest spontaneous smiles of the newborn period to mature smiling and laughter, a central role was revealed for an excitation (tension)-relaxation process in producing smiles.…

This study recorded the pretend play behavior of a total of 22 boys and girls aged 20 and 26 months to determine the effects of age, sex, toy type, and order of toy presentation on the amount of pretending observed during two home visits. Each visit consisted of three segments: two play episodes of 10 minutes each and an intervening segment of…

The Ontario Institute for Studies in Education and the Canadian Mothercraft Society are running a day care program for infants (from 3 to 30 months of age) designed to facilitate their cognitive, personality, and social development through personalized adult-child interaction, guided learning situations, free play, and specialized care.…

The smiles and laughter of an infant form the beginning of the developmental process of interpersonal interaction and socialization. The earliest smiles are automatic expressions of internal states, but soon infants' smiles are communications of pleasure. The developmental changes in smiling and laughing in early infancy reflect the rapidity with…

The differential visual responses of 20 Down's Syndrome and 20 normal infants (CA 8 months) to 13 pairs of visual targets were compared. Although DS subjects generally looked longer at the stimuli than normal subjects, they showed a response differential in only 3 stimulus pairs compared to 11 for the normals. Six of the stimulus pairs elicited…

This study was designed to: (1) investigate differential responding to stimuli that differ along a continuum of degree of discrepancy from a familiarized standard; and (2) attempt to determine if infants will show response decrement and recovery to conceptual categories. Fifty-five infants at two age levels (10 and 16 weeks) were familiarized with…

To determine the impact of child abuse on the developmental functioning of infants, 30 cases of physically abused children (2 to 29.8 months old) were compared to a reference group of 30 nonabused children. (Author/SBH)

The author cites a 1939 study by H. Skeels and H. Dye in which the IQs of retarded infants in orphanages were increased after exposure to substitute mothering, and reviews current behavior modification research to support the contention that intelligence can be increased. (CL)

Examination of object word learning and use in beginning (vocabulary of less than 50 words) and advanced (vocabulary of more than 50 words) infant speakers indicated that both groups formed concepts, learned, and generalized words for the to-be-learned objects. Advanced speakers learned more words and concepts and engaged in broader generalization…

The developmental pattern of concurrent synaptogenesis in rhesus monkeys is consistent with a straightforward model of relations between brain and cognitive development. Concurrent synaptogenesis is hypothesized to lay the primary cortical foundation for a series of developmental levels in middle infancy that have been empirically documented in…

Compares two types of semantic development (the acquisition of disappearance words and success-failure words) to performance on two types of cognitive tasks (object-permanence and means-ends tasks) among infants. (HOD)

Argues that Nigerian tribal myths and beliefs keeping infants and young children from looking into mirrors interfere with the early development of self-concept. The self-concept of infants is viewed as contributing importantly to the way they perceive other aspects of their environment. (RH)

Reviews early theoretical and research literature on handedness and places it within the larger context of the nature-nurture controversy. Discussion focuses on Baldwin's study of the development of hand preference in infants in relation to the recapitulation theory, mental development ("dynamogenesis"), and speech development.…