Reports the results of studies of perception of very young infants. Sixty infants 6 to 23 days old were presented objects; looking-at and reaching-for the objects were measured. Results indicated active visual exploration of objects did occur; however, little motor activity was directed toward the objects. (SL)

Describes the reaction of infants and their attention to events by actions such as vocalizing, smiling or a change in respiration rate. Suggests that understanding of infant selectivity and duration of attention should provide insight into the nature of psychological growth. (JM)

Presents the procedures, results, and conclusions of two studies conducted to investigate the process of children separating from their mothers. The authors suggest that this kind of behavior has important biological and psychological consequences, among which are increased opportunities for learning and for adaptation to the environment, on the…