Purpose: The aim of this study was to investigate language growth in individuals with fragile X syndrome (FXS) from early childhood to adolescence and the influence of maternal responsivity on language growth. Method: We conducted a longitudinal analysis of language development in 55 youths (44 males, 11 females) with FXS. Data collection spanned…

Purpose: This research explored syntactic growth in children with fragile X syndrome (FXS) over a 5-year period, and variability in growth in relation to autism symptoms, nonverbal cognition, maternal responsivity, and gender. Method: Language samples at 4 time points from 39 children with FXS, 31 boys and 8 girls, were analyzed using the Index of…

Purpose: In this study, we examine joint engagement (JE) in young children with fragile X syndrome (FXS) and its relationship to language abilities and autism spectrum disorder symptomatology at 24 to 36 months (toddler period) and 59 to 68 months (child period). Method: Participants were 28 children with FXS (24 boys, four girls) and their…

Purpose: The authors examined (a) whether dose frequency of milieu communication teaching (MCT) affects children's canonical syllabic communication and (b) whether the relation between early canonical syllabic communication and later spoken vocabulary is mediated by parental linguistic mapping in children with intellectual disabilities (ID).…

The study compared the vocal production and language learning environments of 26 young children with autism spectrum disorder (ASD) to 78 typically developing children using measures derived from automated vocal analysis. A digital language processor and audio-processing algorithms measured the amount of adult words to children and the amount of…

The relationship between early maternal responsivity and later child communication outcomes in young children with fragile X syndrome was investigated. Data were obtained from 55 mother-child dyads over a 36-month period. Performance data were obtained at each measurement point from video observations of four different contexts. These were coded…

Research over the past 50 years has yielded several promising approaches and many specific intervention techniques designed to enhance the communication and language development of young children with intellectual and developmental delays and disabilities. Yet virtually no systematic research has been conducted on the effects of different…

There is growing evidence that cumulative exposure to highly responsive parenting styles throughout the early childhood period may provide a variety of important child benefits in terms of language, cognitive, social, and emotional development. We view maternal responsivity as a dynamic construct of central importance to the development of…

Down syndrome (DS) is associated with abnormalities in multiple organ systems and a characteristic phenotype that includes numerous behavioral features. Language, however, is among the most impaired domains of functioning in DS and, perhaps, also the greatest barrier to independent meaningful inclusion in the community. In this article, we review…

A longitudinal study of generalized effects of a language training program on the structural aspects of six severely retarded institutionalized adolescents' productive language revealed a strong relationship between the length of the trained forms and generalization. This effect was related to Ss' mean length of utterance. (Author/CL)

This study examined the relationship between prelinquistic vocalization and expressive vocabulary one year later in 58 toddlers (ages 17- to 34-months old). Rate of vocalizations, rate of vocalizations with consonants, and rate of vocalizations used interactively were all positively related to later expressive vocabulary. (Author/DB)

The report presents findings of an examination and followup of language intervention for language delayed preschoolers. Three objectives were addressed: to develop and use a strategy for assessing the long-term outcomes resulting from language training programs, before, during, and after the transition period from special preschool programs to the…

The paper proposes that primary social relationships between child and caregiver are critical context for language learning and examines current assumptions about the nature of language and the processes involved in language learning, with particular attention to the effects of severe handicaps on the social processes underlying language…

Effects of adult contingent vocal imitation on vocal imitation skills of three young (26 to 29 months) children with mental retardation were investigated. All children vocally imitated in response to adult contingent imitation during training. There was minimal generalization to adult contingent imitation and elicited imitation prompts but…

A review of research on language handicapped, disadvantaged, and other children, indicates that incidental language teaching (natural unstructured interactions between adults and children and which allow adults to transmit new information and give children practice in developing communication skills) is a promising language intervention technique…