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1.
This study examined whether there are processing differences between children with Down syndrome (DS; n = 22; 7 years 8 months to 13 years 10 months) and typically developing children (TD; n = 22; 6 years 6 months to 10 years 10 months), matched for receptive vocabulary. The TD children performed better on tests of nonverbal intelligence (matrices), phonological awareness (sound deletion), and phonological short-term memory (digit span), as well as spelling accuracy (30 single words). Separate regression analyses revealed that nonverbal intelligence and phonological awareness were the best predictors of spelling accuracy for TD children, whereas receptive vocabulary and phonological short-term memory were the best predictors for children with DS. An examination of spelling errors suggested that although children with DS do use some phonological awareness during spelling, deficits in short-term memory appear to limit success. The implications of these results for intervention studies are briefly discussed.  相似文献   

2.
Language and reading outcomes at age 13 were examined in a sample of 22 children who were late talkers as toddlers. The late talkers, all of whom had normal nonverbal ability and age-adequate receptive language at intake (24-to-31 months), were compared to a group of 14 typically developing children similar at intake on age, SES, and nonverbal ability. Late talkers had significantly poorer vocabulary, grammar, reading/spelling, and verbal memory skills at age 13, although as a group, they generally performed in the average range on most language and academic tasks. The findings suggest that slow early language development reflects a predisposition for slower acquisition and lower asymptotic performance in a wide range of language-related skills into adolescence.  相似文献   

3.
In this study, we performed a fine grained analysis of writing by children with a specific language impairment (SLI) and examined the contribution of oral language, phonological short-term memory (STM), nonverbal ability, and word reading to three writing constructs (productivity, complexity and accuracy). Forty-six children with SLI were compared with 42 children matched for chronological age, receptive vocabulary (N = 46) and reading decoding (N = 46) on a measure of narrative writing. The SLI group performed worse on all measures compared to children of a similar chronological age. The SLI group produced a greater proportion of orthographic spelling errors than children with similar receptive vocabularies, but were comparable to children matched for reading decoding. The children with SLI showed specific difficulties in the omission of whole words (e.g. auxiliary verbs and subject nouns) and omissions of grammatical morphology (e.g. past tense—ed) reflecting the difficulties shown in their oral language. Receptive grammar made a significant contribution to writing complexity and accuracy. Phonological fluency contributed to writing productivity, such as the production of diverse vocabulary, ideas and content and writing fluency. Phonological STM and word reading explained additional variance in writing accuracy over and above the SLI group’s oral language skills.  相似文献   

4.
Children learning English as an additional language (EAL) are a growing population of learners in English primary schools. These children begin school with differing levels of English language proficiency and tend to underperform in relation to their non-EAL peers on measures of English oral language and reading. However, little work has examined the developmental trajectories of these skills in EAL learners in England. EAL learners and 33 non-EAL peers in Year 4 (age 8–9 years) were assessed at three time points over 18 months on measures of oral language (vocabulary, grammar and listening comprehension), phonological processing (spoonerisms and rapid automatised naming) and reading skills (single-word decoding and passage reading). At t1, EAL learners scored significantly lower than non-EAL peers in receptive and expressive vocabulary (breadth but not depth), spoonerisms and passage reading accuracy. Contrary to previous research, no significant group differences were found in listening or reading comprehension skills. With the exception of passage reading accuracy, there was no evidence for convergence or divergence between the groups in rate of progress over time. After three years of English-medium classroom instruction, EAL learners continue to underperform relative to their non-EAL peers in breadth of English vocabulary knowledge. This discrepancy in vocabulary knowledge does not appear to narrow as a result of regular classroom instruction in the run up to the final stages of primary school, pinpointing vocabulary as a key target for intervention.  相似文献   

5.
The purpose of this study was to examine verbal fluency and verbal short-term memory in 12 adults with Down syndrome (DS) and 12 adults with Intellectual Disability (ID) of unspecified origin, matched for receptive vocabulary and chronological age. Participants’ performance was assessed on two conditions of a verbal fluency test, namely, semantic and phonemic fluency. In addition to the total number of correct words produced, the use of clustering and switching strategies was also evaluated. In order to investigate the likely relations of verbal short-term memory with the test variables, a digit span task was administered. According to the results of the study, the two groups differed significantly on the average phonemic cluster size, with the ID group outperforming the DS group. Regarding the within-group comparisons, a relatively similar pattern of results was found for the two groups, indicating higher scores on all the measures involved in the semantic test than the phonemic one. The examination of the relation of verbal short-term memory with the verbal fluency test measures revealed that, in the DS group, only the total words produced in the semantic and the phonemic test and the number of phonemic switches were significantly associated with verbal short-term memory. Additionally, in both groups, word productivity in the semantic and the phonemic test was positively associated with the number of switches. The observed similarities and differences in the performance of the two groups, as well as the associations that emerged among the test variables in each group, are discussed.  相似文献   

6.
Research has shown that verbal short‐term memory span is shorter in individuals with Down syndrome than in typically developing individuals of equivalent mental age, but little attention has been given to variations within or across groups. Differences in the environment and in particular educational experiences may play a part in the relative ease or difficulty with which children remember verbal material. This article explores the performance of 26 Egyptian pupils with Down syndrome and 26 Egyptian typically developing children on two verbal short‐term memory tests: digit recall and non‐word repetition tasks. The findings of the study revealed that typically developing children showed superior performance on these tasks to that of pupils with Down syndrome, whose performance was both lower and revealed a narrower range of attainment. Comparisons with the performance of children with Down syndrome in this study suggested that not only did the children with Down syndrome perform more poorly than the typically developing children, their profile also appeared worse than the results of studies of children with a similar mental age with Down syndrome carried out in western countries. The results from this study suggested that, while deficits in verbal short‐term memory in Down syndrome may well be universal, it is important to recognise that performances may vary as a consequence of culture and educational experiences. The significance of these findings is explored with reference to approaches to education and how these are conceptualised in relation to children with disabilities.  相似文献   

7.
Many children who speak English as an additional language (EAL) underachieve in areas of English literacy, especially in the primary years. These difficulties are often attributed to low levels of English language fluency as they enter the education system. In an effort to provide a greater understanding of this underachievement, the cognitive‐linguistic factors underlying literacy development in monolingual children and children learning EAL were examined in a three‐year longitudinal project. The project, conducted in schools in the north of England, followed the developmental progression of forty‐three children learning EAL and forty‐three monolingual children from school years Two to Four. Children were assessed on measures of reading accuracy, reading and listening comprehension, receptive and expressive vocabulary, and reception of grammar. Analysis revealed similarities between the two groups of children on reading accuracy, but children learning EAL had lower levels of vocabulary and comprehension at each point in time. Data are discussed in terms of the development of underlying language skills and the impact of these skills on both reading and listening comprehension. The implications of the findings for classroom practice are considered.  相似文献   

8.
The performance of deaf children with cochlear implants was assessed using measures standardized on hearing children. To investigate nonverbal cognitive and sensorimotor processes associated with postimplant variability, five selected sensorimotor and visuospatial subtests from A Developmental Neuropsychological Assessment (NEPSY) were compared with standardized vocabulary, reading, and digit span measures. Participants were 26 deaf children, ages 6-14 years, who received a cochlear implant between ages 1 and 6 years; duration of implant use ranged from 3 to 11 years. Results indicated significant correlations between standard scores on the Design Copying subtest of the NEPSY and standard scores on vocabulary comprehension, reading, and digit span measures. The results contribute to our understanding of the benefits of cochlear implantation and cognitive processes that may support postimplant language and academic functioning.  相似文献   

9.
Data on the placements of over 3,000 children with Down's syndrome (born between 1980 and 1992) were collected from 94 areas around the country, over the 12 year period studied. Analysis showed an increase in the proportion of children attending mainstream schools, with wide local variations. Very small numbers of children had mixed placements (part-time mainstream/special school) and placements in specially resourced units. Changes in school type occurred from mainstream to special school, typically at around 8 or 9 and again at 11 to 12 years. There was a disproportionate number of boys with Down's syndrome in special schools, apparently because more boys than girls entered special schools at 5 or 6 years old.  相似文献   

10.
The extent to which cognitive development and abilities are dependent on language remains controversial. In this study, the analogical reasoning skills of deaf and hard of hearing children are explored. Two groups of children (deaf and hard of hearing children with either cochlear implants or hearing aids and hearing children) completed tests of verbal and spatial analogical reasoning. Their vocabulary and grammar skills were also assessed to provide a measure of language attainment. Results indicated significant differences between the deaf and hard of hearing children (regardless of type of hearing device) and their hearing peers on vocabulary, grammar, and verbal reasoning tests. Regression analyses revealed that in the group of deaf and hard of hearing children, but not in the hearing group, the language measures were significant predictors of verbal analogical reasoning, when age and spatial analogical reasoning ability were controlled for. The implications of these findings are discussed.  相似文献   

11.
This study investigated the effectiveness of a phonological awareness intervention for 4‐year‐old children with Down syndrome. Seven children with Down syndrome who attended an early intervention centre participated in the intervention. Their performance on measures of phonological awareness (initial phoneme identity), letter name and sound knowledge, and print concepts pre‐intervention and post‐intervention, was compared with that of a randomly selected group of age‐matched peers with typical development. The intervention involved print referencing techniques whereby the children’s parents were instructed to bring the children’s attention to targeted letters and sounds within words and to draw their attention to the initial phonemes in words during daily shared book reading activities. The intervention was presented for a 6‐week period. The results indicated a significant treatment effect on phonological awareness and letter knowledge for the children with Down syndrome. Additionally, above‐chance performance on the initial phoneme identity task was contingent on letter knowledge of the particular phoneme. Individual profiles of the children with Down syndrome pre‐intervention and post‐intervention are presented, and implications for the management of preschool children approaching the age of integration into mainstream primary schools are discussed.  相似文献   

12.
It has been suggested that the ability to learn a foreign language is related to working memory. However, there is no clear evidence about which component of working memory may be involved.Two experiments investigated working memory problems in groups of seventh and eighth grade Italian children with difficulties in learning English as a second language. They were compared with control groups of children matched for age, education, school, and intelligence who differed for foreign language learning ability.Experiment 1 focused on clarifying how modality-specific the memory problem of children with a foreign language learning difficulty (FLLD) is. Verbal working memory tasks (forward and backward digit span) were proposed together with visuospatial working memory (VSWM) tasks. Groups showed a significant difference only in the more passive verbal working memory task, that is, the forward digit span.Experiment 2 focused on clarifying how central the verbal working memory problem of students with an FLLD is. A nonword repetition task and an Italian version of the listening span test were proposed. Groups differed significantly in both tasks. However, differences in the listening span test disappeared when nonword repetition performance was partialed out. It was concluded that a difficulty in learning a foreign language is mainly related to the more passive aspects of verbal working memory, typically associated with the articulatory loop.  相似文献   

13.
The genetic and environmental etiologies of diverse aspects of language ability and disability, including articulation, phonology, grammar, vocabulary, and verbal memory, were investigated in a U.K. sample of 787 pairs of 4.5-year-old same-sex and opposite-sex twins. Moderate genetic influence was found for all aspects of language in the normal range. A similar pattern was found at the low end of the distribution with the exception of two receptive measures. Environmental influence was mainly due to nonshared factors, unique to the individual, with little influence from shared environment for most measures. Genetic and environmental influences on language ability and disability are quantitatively and qualitatively similar for males and females.  相似文献   

14.
The performance of 25 children with Down syndrome on delay of gratification tasks was compared with that of a mental age-matched group of typically developing children. Delay tasks included both other- and self-imposed tasks. Children with Down syndrome were significantly less able to delay gratification than the comparison group on two of the three tasks. Receptive language was associated with delay on the self-imposed task for the typically developing group but not for children with Down syndrome. It is hypothesised that there may be a lag in the development of self-regulation that is greater than the lag between chronological and mental age for children with Down syndrome, with expressive language playing a role in this lag. The practice of using mental age as the method for matching groups of children with Down syndrome with typically developing children is called into question by the results of this study.  相似文献   

15.
Research Findings: The contribution of 3 executive function skills (shifting, inhibitory control, and working memory) and their relation to early mathematical skills was investigated with preschoolers attending 6 Head Start centers. Ninety-two children ranging in age from 3 years, 1 month, to 4 years, 11 months, who were native English or Spanish speakers were assessed for these executive function skills as well as their receptive vocabulary skills and early mathematical abilities using the Child Math Assessment (Starkey, Klein, & Wakeley, 2004), which captures an array of skills across 4 domains. Hierarchal regression analyses revealed that inhibitory control and working memory made unique contributions to children’s early mathematical abilities in the domains of numeracy, arithmetic, spatial/geometric reasoning, and patterning/logical relations after we controlled for age, receptive vocabulary, and previous Head Start experience. Furthermore, receptive vocabulary also accounted for significant variance in children’s early mathematical abilities above and beyond executive function skills. No group differences emerged between English-only and dual language learners on the fit of the regression models. Practice or Policy: These findings extend previous research highlighting the interface of executive function skills and mathematical learning in early childhood with further evidence to support this relationship beyond early numeracy and counting using a broad measure of critical early math skills. In addition, the intricate role of language in the development of early mathematical competence is considered. Implications of these findings for scaffolding executive function skills and vocabulary within prekindergarten math curricula are discussed, with particular consideration for children from low socioeconomic backgrounds.  相似文献   

16.
This longitudinal study examined the role of narrative skills in English reading comprehension, after controlling for vocabulary and decoding, with a sample of 112 dual language learners (DLLs), including both Spanish–English and Cantonese–English children. Decoding, vocabulary, and narrative samples were collected in the winter of first grade and reading comprehension skills were assessed on the same children 1 year later in second grade. Spanish–English DLLs had significantly lower English receptive vocabulary but higher L1 receptive vocabulary than their Cantonese peers. At the same time, Spanish–English DLLs scored lower than Cantonese–English DLLs on English reading comprehension. There were no differences in English reading comprehension between DLL children in bilingual programs and those in mainstream English programs after controlling for L1. Multiple regression results show that English decoding and English vocabulary explain a significant portion of the variance in English reading comprehension. Regression results also revealed a significant, albeit small, effect of narrative quality (both within- and cross-language) on English reading comprehension 1 year later, after controlling for English decoding and English vocabulary. Implications and directions for future research are discussed.  相似文献   

17.
This research investigated the relation between children’s performance on two measures of receptive language and children’s auditory discrimination of consonant-vowel sounds having frequency and temporal acoustic differences. The measures of fine-grained auditory discrimination produced significant multiple regression coefficients against both receptive vocabulary (Peabody Picture Vocabulary Test-Revised) and receptive language (Token Test for Children) scores. Validation analyses conducted by predicting receptive vocabulary and language scores for a new sample of children and relating them to the actual scores led to significant outcomes. It was concluded that fine-grained auditory discrimination is particularly important in the relatively early stages of language learning. The cooperation of the participating children, teachers, principals, and school district administrators is gratefully acknowledged. This research was supported, in part, by a grant from NINCDS (NIH).  相似文献   

18.
Children's goal-directed behaviors were examined in independent play sessions before and after a joint-play interaction with their mothers for a group of children with Down syndrome (n = 22) and a control group of mental and language age matched typically developing children (n = 24). While both groups showed comparable amounts of time spent in independent goal-directed play during the pre session and similar play responses with their mothers during the joint play session, only the control children significantly increased their goal-directed behavior from the pre to the post session. Maternal behaviors that provided information about how to use the toy predicted increases from the pre to post sessions in independent goal-directed play but only for the control children. These findings suggest that children with Down syndrome may have more difficulty transferring the goal-directed play behaviors they can use with support from their mothers to an independent play situation. Findings are discussed in relation to early education program design for children with Down syndrome.  相似文献   

19.
20.
Increasingly, children with Down Syndrome are attending mainstream schools, but evidence suggests that these children are more prone to peer rejection and other problems when compared with their non‐disabled counterparts. However, relatively little is known about children's attitudes toward their peers with moderate to serious learning disabilities, including Down Syndrome. This study assessed the attitudes of non‐disabled primary school children (n = 118) in mainstream education toward their peers with Down Syndrome. A secondary aim was to assess whether exposure to audiovisual material promoting inclusion had any immediate effects on overall attitudes. A cross‐sectional, questionnaire‐based survey was administered in four rural‐based schools. The results showed that female participants over 10 were the most sociable. Overall attitudes toward inclusion were consistently and statistically significantly more negative than those toward sociability. Other factors, such as contact with peers with Down Syndrome, were not related to attitudes. Neither was there any change in overall attitudes following exposure to the promotional material. Further work is needed to identify factors underpinning the attitudes of non‐disabled children to their peers with Down Syndrome and how best to promote inclusion in mainstream schools.  相似文献   

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