Observation indicated that children most frequently represent objects by performing actions appropriate to the represented objects. With increasing age, children represent objects without using functional actions and with objects bearing little physical similarity to the represented objects. (Author/DB)

This paper presents two studies of the development of social competencies in infancy. In the first experiment, the central issue investigated was whether facial configuration or height is utilized by infants to respond differentially to children and adults. Five different strangers, a male and a female child, a male and a female adult, and a small…