Investigated early determinants of infants' self--other discrimination when presented with a live image of themselves or another person that was either contingent or contingent with delay. Found that infants 4 months and older perceived and acted differently when facing the image of themselves compared to that of another; 9-month-olds showed more…

Describes a pilot project with two objectives: 1) to develop measures of curiosity and exploration applicable to preschool children, and 2) to investigate the relationship between variations in exploratory behavior and other aspects of emotional and cognitive growth. (WY)

Two studies tested whether 12- and 24-month olds' self-knowledge differed from their knowledge of others (mother or inanimate object), or whether toddlers' knowledge of persons (self and mother) differed from knowledge of objects. Results showed that 12-month olds were more sensitive than older toddlers to perceptual features of objects. Data were…

Three experiments explored 5- and 7-month-olds' intermodal coordination of proprioceptive information produced by leg movements and visual movement information specifying these same motions. Results suggested that coordination of visual and proprioceptive inputs is constrained by infants' information processing of the displays and have…