Purpose: This article is concerned with the growing body of international evidence indicating that adolescents in contact with the youth justice system are likely to have severely compromised oral language skills, receptively and expressively. A smaller, but persuasive, literature also points to poor literacy skills in this population. Language…

Recent evidence has suggested that sleep may facilitate language learning. This study examined variation in language ability in 29 toddlers with Down syndrome (DS) in relation to levels of sleep disruption. Toddlers with DS and poor sleep (66%, n = 19) showed greater deficits on parent-reported and objective measures of language, including…

The purpose of this teacher inquiry is to explore the effects of signing and gesturing on the expressive language development of non-verbal children. The first phase of my inquiry begins with the observations of several non-verbal students with various etiologies in three different educational settings. The focus of these observations is to…

Purpose: The authors of this article examined the etiology of developmental language impairment (LI) at 4 and 12 years of age, as well as the relationship between the 2. Method: Phenotypic and quantitative genetic analyses using longitudinal data from the Twins Early Development Study (Oliver & Plomin, 2007) were conducted. A total of 2,923…

Duplications of 7q11.23, deleted in Williams-Beuren Syndrome, have been implicated in autism spectrum disorders (ASDs). A 1.5 Mb duplication was identified in one girl with severe expressive language deficits and anxiety among 1,142 ASD individuals screened for this duplication. Family-based association studies of Tag-SNPs in three genes ("STX1A,"…

Genetic and environmental relations between vocabulary and reading skills were explored longitudinally from preschool through Grades 2 and 4. At preschool there were strong shared-environment and weak genetic influences on both vocabulary and print knowledge but substantial differences in their source. Separation of etiology for vocabulary and…

Fragile X syndrome (FXS) is the leading inherited cause of intellectual disability. The syndrome is caused by a single gene mutation on the X chromosome. Although individual differences are large, most individuals with FXS display weaknesses across all language and literacy domains compared with peers of the same chronological age with typical…

A theory of neurolinguistic function is proposed to explain fluency and the production of stuttered speech disruptions. Stuttering results when the speaker is under time pressure and is unaware of the cause of dyssynchrony between the linguistic and paralinguistic components of speech which are processed by different neural systems but converge on…

Two studies examined the relationship between speech perception and speech production errors in children (N=21 and ages 5 and 7) with articulation disorders. Findings indicated the existence of a subgroup of articulation disordered children for whom production errors reflect perception errors. (Author/DB)

This review considers aspects of normal mental storage and retrieval, storage and retrieval in disordered word finding, possible causes of word finding disorders, and clinical implications in both storage and retrieval components. Implications call for attention to increasing word knowledge, storage strength, naming accuracy and speed, retrieval…

This article argues that word finding problems of children with dyslexia reflect deficits that underlie both naming and reading problems. Research on the co-occurrence of reading and word finding problems is reviewed, and a four-phase research program is reported. Findings focus on the causal relationship between naming speed deficits and reading…

The study attempted to further clarify the relationship between speed and memory span by directly examining whether slower identification of item information is the source of span difficulties in learning disabled (LD) children. Forty-eight sixth grade boys participated in the study, 24 LD and 24 non-LD. The method involved pretesting each subject…

This study of 44 late-talking and normally speaking toddlers with and without histories of middle ear involvement revealed no differences in expressive language outcome attributed to history of middle ear involvement. There seemed to be intergroup differences in outcome on measures of articulation that were associated with history of middle ear…

Of 30 children with low birth weight, only 4 demonstrated clinically significant language problems at age 3. Language problems were characterized by circumscribed expressive syntax difficulties but were not related systematically to birth weight, gestational age, length of neonatal hospitalization, severity of respiratory illness, socioeconomic…