Using data from the first 2 phases of the NICHD Study of Early Child Care, the authors examine the links between maternal employment in the first 12 months of life and cognitive, social, and emotional outcomes for children at age 3, at age 4.5, and in first grade. Drawing on theory and prior research from developmental psychology as well as…

We present a domain-general framework called "constrained attentional associative learning" to provide a developmental account for how and when infants form concepts for animates and inanimates that encapsulate not only their surface appearance but also their movement characteristics. Six simulations with the same general-purpose architecture…

The influence of culture on cognitive development is well established for school age and older children. But almost nothing is known about how different parenting and socialization practices in different cultures affect infants' and young children's earliest emerging cognitive and social-cognitive skills. In the current monograph, we report a…

The federal Early Head Start (EHS) program began in 1995, and a randomized trial was conducted to evaluate the efficacy of 17 EHS programs. In all, 3,001 low-income families (35% African American, 24% Hispanic, and 37% White) with a pregnant women or an infant under the age of 12 months were randomly assigned to a treatment or control group (with…

Examines the meaning of reaction time (RT) and the possibility that it may predict other cognitive and motor skills in the first year of life. Considers two competing models that specify the information-processing components underlying RT performance. Describes the neural data needed to definitively choose between the models and considers…

Preschoolers' questions may play an important role in cognitive development. When children encounter a problem with their current knowledge state (a gap in their knowledge, some ambiguity they do not know how to resolve, some inconsistency they have detected), asking a question allows them to get targeted information exactly when they need it.…

Comments on the monograph reported in this issue. Stresses that the monograph illustrates the difficulty of measuring gender stereotypes; provides insight on activity preferences in middle childhood; considers the role of affect in sex typing by distinguishing affective from cognitive influences; encourages broad-based theories to account for sex…

Describes the richness of Hollich et al.'s model of language acquisition. Presents concerns about focus on object words in word learning research, the phantom child in the model, and the missing affect in theories and research on word learning. Suggests that experimental work inspired by principles and constraints theory and observational work…

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.…

Discusses differences between authors' view of conversation and Ervin-Tripp's (included in this issue) on the similarities between adult and child conversation, planfulness in achieving topic coherence, the generalization of research results to other groups, and the socialization of conversational behavior. Also presents evidence supporting their…

Discusses the effects of gender differences in education and employment on the economies of countries worldwide. Stresses some strong points of the monograph reported in this issue, such as the discrimination between cognitive and affective dimensions of sex typing, and suggestions for alleviating sex stereotyping. Suggests that the monograph has…

This report presents results from an experimental comparison of four kinds of Head Start programs (Montessori, Traditional, Bereiter-Engelmann, and Darcee) and a 3-year follow-up through second grade. The four programs are described, and the immediate and stable effects of each program on children's cognitive, motivational and perceptual…

The cognitive learning of children is explored in four studies: (1) Alphabet Reading, (2) Learning Reading Units and Classical Concept Formation, (3) Counting Learning and Counting Learning Mediated by Verbal-Response Chains, and (4) Writing Learning, Imitation, and the Cognitive-Learning Acceleration. (NH)

Examined 2-year-olds' language acquisition with an emphasis on the agency and intentionality of the child. Concluded that development depends on the child's expression of intentionality by actions (performance), the essential tension between the child's engagement and effort, and the integration of linguistic, cognitive, and social aspects of the…

Used Visual Expectation Paradigm to describe information processing changes and individual differences during first year of life. Found regular age changes in mean reaction time and variability but not in minimum reaction time, suggesting that growth rate of sensory-detection information is constant during first year but age changes occur in level…