Temperament of nine-month olds was assessed by means of questionnaires and two laboratory visits. Mothers' and fathers' agreement on questionnaire scales was low, and their factor structures differed. In laboratory measures, fearfulness and pleasure showed cross-situation generality, short-term stability, and convergence with questionnaire scales.…

Two experiments used Visual Expectations Procedure to investigate development of expectations in infants up to 12 months old. Reaction time improved and the percentage of anticipations increased between 6 and 9 months using an alternation pattern or a complex pivot pattern, and between 4 and 8 months when using a left-right alternation or a…

Three experiments investigated 4-, 6-, and 8-month-olds' perception of the audible, visible, and combined attributes of bimodally specified syllables. Results suggested that at 4 months, infants attended primarily to the featural information, at 6 months primarily to the asynchrony, and at 8 months to both features independently. (Author/KB)

Patterns of mothering and fathering in 72 families were observed longitudinally and from the perspective of the family system when infants were 1, 3, and 9 months old. Findings suggested similarities and differences in mothering and fathering. (Author/RH)

From a developmental perspective, examines the emotions and behaviors elicited by different types of infant cries. Participating were 60 children ranging in age from late preschool to preadolescence. (Author/RH)

The behavioral development of rural Guatemalan infants was assessed shortly after birth on a Neonatal Assessment Scale (NAS) and at 6-, 15-, and 24-months-of-age on a Composite Infant Scale (CIS). Summary variables based on NAS performance poorly predicted later assessed performance even as recently as six months after birth. The CIS modestly…

Older Down's syndrome infants responded to the regular reappearance of a squeaky doll with significantly more affective behavior than did younger Down's syndrome infants. Longitudinal research with the younger infants indicated that the onset of affective behavior significantly correlated with mental development and aspects of temperament.…

In two experiments, infants 9-17 months of age were probed for recognition of a previously unfamiliar trained name. Responses were videotaped and scored for gaze, gesture, and vocalization. Results demonstrate improvement in receptive language capacity over the age range studied. (RMH)

Reviews research on infants classified by Ainsworth's "Strange Situation" assessment as insecure/ambivalent, and examines studies exploring attachment theory beyond infancy. Presents a theoretical discussion of the ways in which patterns of mother and child behaviors associated with the insecure/ambivalent pattern may work together to…

Analyzed data from 11 studies of concordance of mother/father attachment to an infant based on the Strange Situation. Found that security of attachment, type of insecurity, and subcategory classification of security to one parent depended on the other parent. Discussed parenting styles and infant temperament. (BC)

Used time-lapse video to record sleep/wake states of preterm infants for three 24-hour periods at 33 and 35 weeks conceptional age. Found that very-low-birthweight preterm infants showed marked stability and developmental change in the organization of sleep/wake states from a very early age, and their states were related to demographic variables…

Explored the antecedents and consequences of attachment disorganization among 157 participants in a prospective longitudinal study from 24 months to 19 years. Found that infant history of attachment disorganization was correlated with consequent variables related to: mother-child relationship quality at 24 and 42 months; child behavior problems in…

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…

Two experiments tracked infants' eye movements to examine use of word-initial information to understand fluent speech. Results indicated that 21- and 18-month-olds recognized partial words as quickly and reliably as whole words. Infants' productive vocabulary and reaction time were related to word recognition accuracy. Results show that…

Examined the effects of a sensitivity intervention program on the Parenting by lower-class mothers of irritable infants. Found that intervention group mothers were significantly more responsive, stimulating, visually attentive, and controlling of their infant's behavior than were control-group mothers. Intervention infants had higher scores than…