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Young autistic children were compared to normal and control samples on measures of non-verbal communication skills and object play skills. Deficits in non-verbal indicating behaviors best discriminated the children diagnosed as autistic from the other groups. Although the autistic children also exhibited deficits in object play behavior, these deficits did(More)
Infant attachment and mother-child interaction were evaluated for 65 primiparous women and their singleton infants conceived through in vitro fertilisation (IVF) and a control group of 61 women and their infants conceived naturally. The sample was enrolled during pregnancy as part of a longitudinal study. At 12 months postpartum, security of infant(More)
The development, behaviour and temperament of 65 singleton infants conceived through in-vitro fertilization (IVF) and 63 matched controls were compared at 1 year postpartum. Primiparous women were recruited during pregnancy and their infants' development was assessed at 1 year. In addition, test-taking behaviour was evaluated by an examiner using the Bayley(More)
The aim of this study was to determine the social and cognitive correlates of language acquisition in autistic children. Functional and symbolic play skills were shown to be associated with language abilities in a sample of young autistic children (mean CA 54.5 months), thereby replicating previous findings. Certain types of nonverbal communication skills(More)
Assessments of play, sensorimotor, language, and general developmental skills were administered to 20 preterm and 20 full-term infants at comparable corrected and postnatal ages in 5 sessions during the second and third years of life. Clear effects of biological maturity on play and sensorimotor skills were demonstrated at 13 1/2 months, and less pervasive(More)
The social interactions of young autistic children and their caregivers were contrasted to interactions involving normal and mentally retarded controls. The autistic children displayed a much lower frequency of attention sharing behaviors, such as pointing to or showing objects. Alternatively, the autistic children directed as much looking, vocalizing and(More)
This study examined the association between insecure attachment, behavioral inhibition, and anxiety in an at risk sample of preschool children. The relationship between maternal anxiety and child anxiety was also assessed. Participants were 104 children aged 3-4 years who were assessed for behavioral inhibition and mother-child attachment (using the Strange(More)
The social behaviors of 14 autistic children and 14 normal children of equivalent mental age were observed during a free-play situation as well as during separation from and reunion with their mothers and a stranger. As a group, the autistic children showed evidence of attachment to their mothers, directing more social behaviors and more physical contact to(More)
The category knowledge and receptive language skills of 16 autistic, mentally retarded, and normal children were assessed. The autistic children's knowledge of function, form, and color categories was comparable to that of the mental-age-matched mentally retarded and normal comparison groups. Category knowledge and receptive language were more closely(More)