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…

Examined infants' ability to retrieve an object from atop a slightly larger object. Found that even 5-month-olds could retrieve objects close in size and fully contiguous with their bases when demands on reaching skill were reduced. Proposed that when they fail this task, it is because they lack the skill to reach the top object without…

Examined extent to which parent sensitivity, infant affect, and affect regulation at 4 months predicted mother- and father-infant attachment classifications at 1 year. Found that affect regulation and maternal sensitivity discriminated infant-mother attachment groups. The association between maternal sensitivity and infant-mother attachment was…

Used shift-rate recovery method in three experiments to examine extent to which 6-month-olds find perceptual cues such as density and length useful in discrimination of linearly arranged sets of large numbers of objects. Found that infants can discriminate between large number sets by relying on absolute cues such as density and on relative cues…

Observed infants' manual gestures while playing with mothers. Infants were more likely than mothers to request objects and less likely to respond to requests for objects. Vocalization accompanying requests increased with age. Infant gazing was most likely during offers that infants initiated without preceding maternal request. Unsolicited offers…

Examined influence of child's sex on mothers' expectations about their 11-month-olds' motor development. Found that mothers of girls underestimated their performance on the novel task of crawling down steep and shallow slopes and mothers of boys overestimated their performance. Girls and boys exhibited identical levels of motor performance during…

Discusses the causes of shaken baby syndrome and how to recognize, respond to, and prevent it. Identifies horseplay to avoid and recommends never shaking baby even for apnea. Offers 12 tips for working with crying babies and includes ten discussion questions to test knowledge of the syndrome. (DLH)

Presented paired-comparison familiarization-novelty recognition task to 4-month-olds. Found that peak look duration during pretest and familiarization periods predicted recognition performance. Recognition was unaffected by choice-trial length. Longer gaze durations during pretest and familiarization were associated with more time in heart…

Examined role of infant and toddler temperament in predicting 2-year olds' empathy. Found that children showed relatively more concern for mother's distress, but were also responsive to unfamiliar victims. Unreacting infants showing little affect also showed less empathy toward the unfamiliar adult almost two years later. Inhibition toward…

Three experiments examined cross-modal transfer of shape between touch and vision in 1-month-olds, controlling for side bias and stimulus preference. Results did not provide good evidence that 1-month-olds can transfer information about smooth or nubby shapes from touch to vision. Findings highlight the need to control for side bias and stimulus…

Infant imitation is considered a significant component of social, cognitive, and language development. Observation of 20 infants and their mothers in 2 naturalistic settings at 4 separate ages revealed dyads' imitation and matching in vocal, verbal and action behaviors. Verbal matching increased over the second year, suggesting relation of dyads'…

Patterns of relationships were explored among developmental age, teacher ratings of global engagement, and observed engagement for 9.5- to 63.6-month-olds. Analysis revealed two uncorrelated patterns of relationships: (1) a positive relationship between developmental age and high levels of engagement and a negative relationship with lower…

Investigated 4-month-olds' responsiveness to others' affective expressions in the context of a peekaboo game. Found differential patterns of visual attention and affective responsiveness to happiness/surprise, anger, fear, and sadness. Findings underscore importance of contextual information for facilitating recognition of emotion expressions and…

Examined relationship of maternal sensitivity and infant temperament to attachment security among Korean 1-year-olds. Found that securely attached infants showed more secure-base behaviors and compliance, enjoyed physical contact, and showed fewer fussy/difficult behaviors than did other infants. Infant gender, but not security status, related to…

Explores current theories of emotional development in order to identify the assumptions that could explain the strong antagonism toward early nonbasic emotions. Draws on the contrasting and polarity of viewpoints to examine the logical implications of these viewpoints for the very possibility of early nonbasic emotions and their reciprocal…