Language problems can be associated with specific genetic syndromes, such as Klinefelter syndrome and fragile X syndrome, even in the absence of intellectual and developmental disabilities. Turner syndrome, a relatively common genetic disorder, is caused by the complete or partial absence of 1 of the 2 X chromosomes typically present in women. The…

Velo-cardio-facial syndrome (VCFS) is a genetic disorder caused by a microdeletion of chromosome 22q11.2. Although there is some variability, VCFS is associated with a characteristic physical, behavioral, and cognitive phenotype. This review article focuses on aspects of language and literacy development in VCFS, describing what is known and…

This article reviews the effectiveness of dose forms and the efficacy of dosage and distribution in morphosyntax intervention for children. Dose forms include the commonly used techniques, procedures, and intervention contexts that constitute teaching episodes; dosage includes the quantitative measures of dose, dose frequency, total intervention…

Growing evidence suggests that, as a group, many internationally adopted children catch up to their peers in terms of their language development by the time they reach their school-age years. Although this appears to be particularly true for children adopted during the first few years of life, it is not true for all internationally adopted…

Research on the language development of internationally adopted children has increased substantially in the past few years, with a variety of methods used to measure language abilities in this population, including parent and teacher reports, norm-referenced tests, conversational and narrative language samples, and other procedures. These…

Williams syndrome is a rare neurodevelopmental disorder caused by deletion of approximately 25 genes on chromosome 7q11.23. Children with the syndrome evidence large individual differences in both broad language and reading abilities. Nevertheless, as a group, children with this syndrome show a consistent pattern characterized by relative…

A review of the literature and research on language facilitation with residential retarded populations considers interactive models for facilitating language, the use of communication facilitators, and the content of such training. Two studies demonstrating the beneficial effects of daily caregiver interaction on communication skills are stressed.…

The validity of facilitated communication's effects are viewed from three perspectives, labeled as the plausible perspective, which is unexpected literacy; the skeptical perspective, which claims that social-communicative variables unintentionally influence intervention outcomes; and the enigmatic perspective, which neither rejects outright the…

Case studies are presented of three individuals with severe communication impairments who had been judged to be intellectually impaired but revealed unexpected achievements after training in nonspeech communication. The communication training used facilitation to circumvent hand function impairments. (JDD)