This study examined whether a novel parent-report questionnaire, the Autism Parent Screen for Infants, could differentiate infants subsequently diagnosed with autism spectrum disorder from a high-risk cohort (siblings of children diagnosed with autism spectrum disorder (n = 66)) from high-risk and low-risk comparison infants (no family history of…

When face processing studies find sex differences, male infants appear better at face recognition than female infants, whereas female adults appear better at face recognition than male adults. Both female infants and adults, however, discriminate emotional expressions better than males. To investigate if sex and age differences in facial scanning…

Imitation studies and object search studies show that infants have difficulties using action information presented on video to guide their own behaviour. The present study investigated whether infants also have problems interpreting information shown on video relative to real live information. It was examined whether 6-month-olds interpret an…

Analyzed vocalizations/verbalizations from children acquiring English or French in later single-word period to identify trochaic bias. Found that neither language's vocalizations were exclusively trochaic. French/English differences in iambic productions and acoustic realization of accent were traceable to adult input. Distribution of trochaic and…

Compared food texture preferences during infancy and toddlerhood. Found that infants displayed more negative expressions and head and body movements in response to complex textures than to simple textures. Toddlers displayed more positive head and body movements and more eagerness in response to complex than to simple textures. Experience with…

Compared performance of infants with autism, developmental delays, or normal development on a prospective screening instrument for autism. Found that 20-month-olds with autism lacked social gaze in empathy and joint attention tasks. Infants with autism or developmental delays demonstrated functional play. Few produced spontaneous pretend play.…

Two experiments examined problem solving in 16-month-olds' adaptive locomotion (crossing bridges of varying width with/without handrail). Findings indicated that toddlers attempted wide bridges more than narrow ones. Attempts on narrow bridges depended on handrail presence. Toddlers had longer latencies, examined bridge/handrail more closely, and…

Compared behavior of 52 Costa Rican 12- to 23-month-olds with iron-deficiency anemia to that of 139 infants with better iron status. Found that iron-deficient infants maintained closer contact with caregivers; showed less pleasure and playfulness; were more wary, hesitant, and easily tired; made fewer attempts at test items; and attended less to…

This study investigates the effects of age and prior experience with age-mates on attachment behavior and exploratory play with another child. Twenty home-reared children, half between 18 and 24 months and half between 24 and 30 months, and 20 day care children, also equally divided into the two age groups, were observed in the Ainsworth strange…

Part of a longitudinal study of women and their first-born children who have different employment and day care experiences during the children's first three years of life, this study focuses on the socioemotional development of children at 18 months of age, who had received at least nine months of continuous day care. Particular attention is given…

This book investigates children's security of attachment in infancy and its relationship to their cognitive development in the preschool years, presenting evidence that caregivers' proclivity to treat their infants as mental agents and to attribute intentionally to their behavior is critical to their child's cognitive development. The book…