The cry sounds of 12 well-nourished and 12 malnourished male infants were compared using behavioral and acoustic measures. (BRT)

Videotapes were made of the prehensile activity and looking behavior of 2- and 5-month-old infants in the presence of objects placed within and beyond possible contact distance. (BRT)

The effect of four social learning conditions on early language acquisition was explored, along with comparisons between learning whole words and learning the component sounds of the words. Subjects were 20 infants aged 9 to 15 months. (MS)

Vocalizations of infants were classified and analyzed in a longitudinal sample of infants ranging in age from 2 to 14 weeks. Results suggest that infants performed different types of vocalizations that can be interpreted as affective states from 2 weeks of age on. Parents responded with a highly diversified pattern of reactions to different infant…

Investigated the relationship between maternal alcohol consumption and infant attachment behavior at one year of age. Infants were classified as secure, insecure-avoidant, insecure-ambivalent/resistant, or insecure-disorganized/disoriented. More infants of mothers who had consumed more alcohol were insecure in comparison with infants whose mothers…

Examined effects of birth of premature infant on the family system , focusing on how problems associated with premature birth place family at risk. Mothers of preterm infants felt overprotective, were unwilling to leave infants with babysitters, and perceived initial negative effect on the family. Preterm infants showed less exploratory play and…

Previously published data on infants aged 12 and 13 months who were observed in the Strange Situation with their mothers and fathers were reanalyzed using a component process approach. (PCB)

The relation between resumption of full-time employment by mothers of infants, and subsequent infant-mother and infant-father attachments, was examined. No relation emerged between maternal work status and the quality of infants' attachments to their mothers. (PCB)

Investigates the relation between neonatal cry features elicited by painful circumcision procedures and the perceived urgency of those cries. (HOD)

Infants whose mothers were supportive of their autonomy displayed greater task-oriented persistence and competence during play than did infants of more controlling mothers; securely attached and avoidant infants tended to exhibit greater persistence at tasks than anxious-ambivalent babies, and ambivalent babies were the most negative in affect.…

Compares monocular depth perception with binocular depth perception in five- to seven-month-old infants. Reaching preferences (dependent measure) observed in the monocular condition indicated sensitivity to monocular depth information. Binocular viewing resulted in a far more consistent tendency to reach for the nearer object. (Author)

Examines the effects of an extra five minutes of interaction on the psychomotor and mental development of Iranian infant orphans largely deprived of opportunities to interact with caretakers and peers. Daily intervention continued for six weeks; effects were assessed after a 6-month interval. (RH)

Infants of one, two and three months of age were presented with two checkerboard patterns, one stationary and the other moving in a horizontal oscillatory motion at one of eight rates. Results showed reliable differences in ocular behavior as a function of rate stimulus motion for all three groups of infants. (MS)

Infants at two age levels were shown six patterns which represented three levels of stimulus complexity and two types of organization, facial and nonfacial. Results agree with previous studies in suggesting a change between ages 10 and 15 weeks in dimensions which underlie infants' response to facelike patterns. (Author/HS)