For decades, researchers and practitioners have attempted to find evidence for a personality stereotype in individuals with Down syndrome that includes a pleasant, affectionate, and passive behaviour style. However, a more nuanced exploration of personality-motivation in Down syndrome reveals complexity beyond this pleasant stereotype, including…

Children and adolescents with Down syndrome show an emerging profile of speech and language characteristics that is typical of the syndrome (Chapman & Hesketh, 2000; Chapman, 2003; Abbeduto & Chapman, 2005) and different from typically developing children matched for nonverbal mental age, including expressive language deficits relative to…

In this article we discuss the results of a motor intervention study that we conducted with young children with Down syndrome and other disabilities (Mahoney, Robinson & Fewell, 2001). Results from this study indicated that neither of the two major treatment models that are commonly used with young children with motor impairments was effective at…

Purpose: To evaluate the efficacy of a 6-month course of responsivity education/prelinguistic milieu teaching (RE/PMT) for children with developmental delay and RE/PMT's effects on parenting stress in a randomized clinical trial. Method: Fifty-one children, age 24-33 months, with no more than 10 expressive words or signs, were randomly assigned to…

This study examined whether infants with Down syndrome (N=32) undergoing early motor training would benefit from their parents observing a clinician implement an intervention program with their child. Parents of half the children remained in the room while the clinician implemented motor stimulation techniques, while parents of the other half were…

Down Syndrome children (N=229), aged 1-83 months, from Australia, Canada, and Germany were tested using the Bayley Scales of Infant Development. Test performances on the Bayley's Mental and Motor scales were not dissimilar, leading to the conclusion that young Down Syndrome children from different countries with relatively comparable standards of…

The study examined the interaction behaviors of nonhandicapped siblings of 60 preschool children with either hearing impairments, cognitive/language impairments, or Down Syndrome, and compared these behaviors with those of 35 siblings of nonhandicapped children. Videotapes of social interactions were evaluated for behaviors suggesting imitation,…

The effect of sentence complexity on the ability of 40 trainable mentally retarded mongoloids (median IQ 34.3) to comprehend and imitate verbally presented strings was examined in two studies. Comprehension ability was tested by asking each subject to indicate which of two pictures was being described in the sentence spoken by the examiner. Eight…

The genetics of mental retardation are discussed in terms of geographical isolates, prospects for prevention of trisomic conditions, population genetics, and cytogenetics of Down's syndrome; problems of neurogenesis described are anabolic pathways of galactose and glucose metabolism, abnormal cell migrations in developing brains, and genetic…

The bibliography contains approximately 170 listings (all published in 1973-74) of books, professional articles, films, slides, and videotapes as well as working papers and unpublished manuscripts by staff members of the Experimental Education Unit of the Child Development and Mental Retardation Center at the University of Washington. Listings are…

Ethnographic methodology was used to explore the development of self-management skills in an 18-year-old woman with Down Syndrome. Triangulation of data types and the constant comparative method of data analysis were employed. Outcomes suggested the individual's family culture had a large impact on development of self-monitoring and that early and…

Parents of nine preschoolers with Down's Syndrome participated in a training program focusing on phonological skills. Results of analysis of videotapes of parent-child interactions showed that measures of the children's phonological abilities were correlated with their parents' interactional communication skills. (Author/JDD)

Examination of developmental scores of 198 infants and young children with Down's Syndrome attending exemplary early intervention programs found more similarity to other children in Personal Social and Adaptive Domains and less similarity in Communication and Cognitive Domains of the Battelle Developmental Inventory. These differences were…

Cross-sectional and longitudinal analyses compared age-related changes in adaptive functioning in institutionalized adults with and without Down's syndrome. Cross-sectional analysis showed significant differences related to level of functioning but not to age or etiology. Longitudinal analysis showed a decline in self-help and communication skills…

This study found that siblings (n=19) of severely autistic children, siblings of children with Down's syndrome, and siblings of normal children did not differ on measures of perceived self-competence or parents' report of social competence. Siblings of autistic children had more internalizing and externalizing behavior problems than siblings of…