Discusses the reasons that newborns and young infants cry, the communicative effect and perception of crying, crying in sick and healthy infants, the sound spectograph, and crying for the use of clinical diagnostics. (RJC)

Compared the spontaneous leg movements of 10 infants with Down Syndrome to those of nondisabled infants matched for chronological age and motor age. Contrary to expectations, no significant difference was found in the frequency of leg movements between the two groups. However, Down Syndrome subjects demonstrated significantly fewer of the most…

Proposes a theoretical sequence of cognitive developments as influencing representational play and language in the second year of life. Structural and temporal links between play and language indicate influence of developing mental representation, but variation in timing of developments points to influence of variables. (ET)

Trained 3 month olds to move a 10-object mobile. Changing the mobile to two objects resulted in crying for half the infants. A retention test was given one and seven days later. All infants exhibited retention at one day but only noncriers at seven days. Criers displayed more anger than noncriers in the one-day retention test. (BC)

Examined association between mother's marital status and perinatal outcome among single births in Finland in 1987 (n=56,595 infants). Found that perinatal deaths, low birthweight, and preterm infants were more common among single mothers than among married mothers. Results for cohabiting mothers were more similar to those of married than to those…

Explored patterns of emotional communication in 70 mother-infant dyads, emphasizing both mother and child roles in affect regulation. Display of maternal positive and negative affects decreased with age; child affects were unchanged. Maternal sensitivity was associated with maternal matching of son's affects and daughter's creation of shared…

The antecedent events, clinical features, prevalence, and complications of neonatal Klebsiella septicaemia in 73 infants admitted to a special care baby unit in Nigeria are retrospectively reviewed and compared with those of 72 infants who had no risk factors for sepsis admitted to the same unit during the same period. A nosocomial acquisition of…

Examined the effect on father-infant relationships of a parent training program on infant massage and bathing. Infants in the treatment group greeted fathers with more eye contact, smiles, vocalizing, reaching, and orienting responses and showed less avoidance behavior than did control group infants. Fathers in the treatment group showed greater…

Studied the ontogeny of walking by prelocomotor infants. Results support a dynamic systems view of development and the view that upright locomotion emerges from the self-organization of multiple cooperating elements rather than as a result of a preexisting neural code. (Author/GR)

Tested infants' latency in turning toward stimulus patterns and the duration of their initial fixation. Results showed that "turning latency" fell in a linear manner from 36 to 120 weeks after conception. Fixation time fell abruptly at 53 weeks. Preterm and full-term infants showed the same developmental trends. (BC)

Social experiences and stranger anxiety of infants of working mothers were compared with those of infants of nonworking mothers. Mothers' employment status, and sex and age of infants, were analyzed in relation to anxiety. Maternal work status was not found to be a significant parameter in infant reactions to a stranger except when physical…

Two experiments examined the origins of joint visual attention in 6- to 11-month-olds with a training procedure. Results indicated that joint visual attention does not reliably appear prior to 10 months; from about 8 months, a gaze-following response can be learned; and simple learning is not sufficient as the mechanism through which joint…

Two experiments used object-manipulation tasks to examine whether one- to two-year-olds form superordinate-like categories by attending to object parts. Findings indicated that 14- and 18-month-olds behaved systematically toward categories with different, but not matching, parts. Without part differences, none formed superordinate categories.…

Reviews the construct of attachment, its role as a motivational system in infancy, and its development in the first three years. Emphasizes that attachment must be assessed in the context of particular infant-parent relationships, and reviews specific infant and caregiver behaviors salient to the assessment of attachment. (Author/CR)

Examined whether early individual differences in look duration were related to general mechanisms of the infant nervous system combining attention and emotion. Found significant positive correlations between attention measures and duration of facial expressions of pain/distress after vaccinations at 3, 5, and 11 months. Concluded that individual…