This study examined the relationship between smile type (basic, Duchenne, duplay) and play type (object, physical, vocal, book reading) during parent-infant videotaped interactions at home. Loglinear analyses revealed that different types of smiles occurred during different types of play more often than expected if distributed equally. Different…

Investigated development of face-to-face communication in infants between 1 and 14 weeks old and their mothers. Found a curvilinear development of early face-to-face communication, with increases occurring between weeks 4 and 9. When placed on a sofa, infants' face-to-face communication was longer than when they were held. Girls spent a longer…

Reviews research on the developmental roots of nurturance in young children. Examines child characteristics (age, sex); characteristics of the nurtured object (infants and their behaviors); and aspects of the nurturing situation (adult involvement and encouragement). Implications for furture research and child care practices are suggested. (BB)