Twenty-two infants (6.7 to 12.3 months old) were tested on a visual-cliff apparatus both crawling and in a walker. Results suggest a maturation-based explanation of cliff-avoidance in infants. (CM)

The study was designed to investigate the exploration and attachment behavior of young children in a strange situation in the presence of: (1) an individual to whom the child was attached (the mother); (2) an inanimate object with which the child was highly familiar (favorite toy); and (3) a novel inanimate object (an unfamiliar toy). The effect…

Introduces the concepts of online and offline sampling and highlights the role of online sampling in agent-based models of learning and development. Compares the strengths of each approach for modeling particular developmental phenomena and research questions. Describes a recent agent-based model of infant causal perception. Discusses limitations…

Function of attention in infants is explored. Assuming (1) that infants respond differently to novel situations than to familiar ones; (2) that the infant's pattern of response is a partial reflection of the process of acquiring a perceptual memory of the stimulus, and (3) that sex differences may occur in the rate of habituation, 120 infants…