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1.
This study investigated the effects of bilingualism on set-shifting and working memory in children with autism spectrum disorders (ASD). Bilinguals with ASD were predicted to display a specific bilingual advantage in set-shifting, but not working memory, relative to monolinguals with ASD. Forty 6- to 9-year-old children participated (20 ASD, 20 typically-developing). Set-shifting was measured using a computerized dimensional change card sort (DCCS) task, and by parent report of executive functioning in daily life. Results showed an advantage for bilingual relative to monolingual children with ASD on the DCCS task, but not for set-shifting in daily life. Working memory was similar for bilinguals and monolinguals with ASD. These findings suggest that bilingualism may mitigate some set-shifting difficulties in children with ASD.  相似文献   

2.
Children first exposed to English as a second language when they start school are at risk for poor academic outcome. They perform less well than their monolingual peers, matched for socio-economic background, at the end of primary school on measures of language and literacy, despite immersion in English at school. Previous research suggests, however, that some bilingual children do better on phonological awareness (PA) tasks than monolinguals in preschool. Two experiments investigated the effect of language pair on PA by comparing monolingual and bilingual children's syllable, onset rime, phoneme and tone awareness using detection, deletion and segmentation tasks. Experiment 1 compared bilingual Putonghua-Cantonese children with two matched monolingual control groups. The bilingual group had enhanced phonological awareness. However, the monolingual Putonghua speakers performed better on the phoneme detection task. Experiment 2 compared Cantonese-English bilingual children and controls monolingual in Cantonese. While there was no overall group difference in PA, the bilingual children had better tone awareness. The profile of findings is considered for possible explanations of later literacy difficulties.  相似文献   

3.
A total of 104 six-year-old children belonging to 4 groups (English monolinguals, Chinese-English bilinguals, French-English bilinguals, Spanish-English bilinguals) were compared on 3 verbal tasks and 1 nonverbal executive control task to examine the generality of the bilingual effects on development. Bilingual groups differed in degree of similarity between languages, cultural background, and language of schooling. On the executive control task, all bilingual groups performed similarly and exceeded monolinguals; on the language tasks the best performance was achieved by bilingual children whose language of instruction was the same as the language of testing and whose languages had more overlap. Thus, executive control outcomes for bilingual children are general but performance on verbal tasks is specific to factors in the bilingual experience.  相似文献   

4.
Recent research indicates that bilingual children are more proficient in resolving cognitive conflict than monolinguals. However, the replicability of such findings has been questioned, with poor control of participants' socioeconomic status (SES) as a possible confounding factor. Two experiments are reported here, in which the main attentional functions and pragmatic ability of 54 bilingual and 56 monolingual low‐SES children were assessed (Experiment 1: 6‐ to 12‐year‐olds; Experiment 2: 6‐ to 8‐year‐olds). A language‐switching task was also employed, to measure bilingual proficiency. Overall, the monolingual and bilingual groups did not differ significantly in any of the tasks employed, although the ability to resolve conflict was related to children's level of bilingual experience.  相似文献   

5.
Comparisons of cognitive processing in monolinguals and bilinguals have revealed a bilingual advantage in inhibitory control. Recent studies have demonstrated advantages associated with exposure to two languages in infancy. However, the domain specificity and scope of the infant bilingual advantage in infancy remains unclear. In the present study, 114 monolingual and bilingual infants were compared in a very basic task of information processing—visual habituation—at 6 months of age. Bilingual infants demonstrated greater efficiency in stimulus encoding as well as in improved recognition memory for familiar stimuli as compared to monolinguals. Findings reveal a generalized cognitive advantage in bilingual infants that is broad in scope, early to emerge, and not specific to language.  相似文献   

6.
Two studies addressed the role of representation ability and control of attention on solutions to an appearance-reality task based on two types of objects, real and representational. In Study 1, 67 preschool children (3-, 4-, and 5-year-olds) solved appearance-reality problems and executive processing tasks. There was an interaction between object type (real vs. representational) and question type (appearance vs. reality) on problem difficulty. In addition, representational ability predicted performance on appearance questions and inhibitory control predicted performance on reality questions. In Study 2, 95 children (4- and 5-year-olds) who were monolingual or bilingual solved similar problems. On appearance questions, groups performed equivalently but on reality questions, bilinguals performed better (once language proficiency had been controlled). The difference is attributed to the advanced inhibitory control that comes with bilingualism.  相似文献   

7.
8.
Four experiments examined the development of negative priming (NP) in 3-5-year-old children using as a measure of children's executive function (EF) the dimensional change card sort (DCCS) task. In the NP version of the DCCS, the values of the sorting dimension that is relevant during the preswitch phase are removed during the postswitch phase. The experiments showed that the NP effect observed in the DCCS decreased during the preschool years, and they clarified the circumstances in which NP occurs. Taken together, the findings suggest that the development of EF in early childhood consists in part in disinhibiting attention to information that has previously been suppressed.  相似文献   

9.
In order to examine the effect of the home language on the spelling development in English in children who are learning English as a second language (ESL learners), it is best to directly compare groups of ESL learners from various home language backgrounds. This study compared the oral language, phonological awareness, reading, and spelling performance of Tagalog–English bilingual, Cantonese–English bilingual, and monolingual English-speaking children in Grade 1. The bilingual children had lower scores than the monolinguals on measures of oral proficiency, but demonstrated similar or better performance on most phonological awareness, reading, and spelling tasks after controlling for vocabulary size in English. A series of moderated regression analysis revealed that although phonological awareness was associated with English spelling performance regardless of language background, the associations between specific spelling tasks and related underlying skills seemed to differ across language groups.  相似文献   

10.
Executive function (EF) plays a foundational role in development. A brain-based model of EF development is probed for the experiences that strengthen EF in the dimensional change card sort task in which children sort cards by one rule and then are asked to switch to another. Three-year-olds perseverate on the first rule, failing the task, whereas 4-year-olds pass. Three predictions of the model are tested to help 3-year-olds (N = 54) pass. Experiment 1 shows that experience with shapes and the label “shape” helps children. Experiment 2 shows that experience with colors—without a label—helps children. Experiment 3 shows that experience with colors induces dimensional attention. The implications of this work for early intervention are discussed.  相似文献   

11.
双语语音发展研究显示双语儿童的语音发展明显异于单语儿童。若把双语儿童的语音发展跟单语儿童作比较,双语儿童极有可能被低估或错误评估。本研究采用标准化语音测试,探讨语言背景对双语(广东话及普通话)儿童语音发展的影响。本文记录及比较两名不同背景的三岁半双语儿童的语音发展,亦同时把该两名儿童的语言表现与单语儿童作比较。结果显示不同语言背景的双语儿童有不同的语音表现,跟单语儿童的语音发展亦不相同。本文提出测试双语儿童语音发展的建议。  相似文献   

12.
6 groups of middle-class children (N = 116) received training in a motor skill, skipping, and a cognitive task, conservation of substance, under 2 conditions of teacher supportive behavior. Children in 3 treatment groups received instruction under the condition of increased teacher support, while instruction was given with nonvaried teacher support to 3 control groups. Experimental and control group gain scores on the 2 learning tasks were compared. Findings suggested that preschool children, especially girls, benefit significantly by increased teacher support in learning a motor skill, but greater gain was made in the cognitive area when receiving training under the condition of nonvaried teacher support.  相似文献   

13.
Using speech sounds to guide word learning: the case of bilingual infants   总被引:1,自引:0,他引:1  
Despite the prevalence of bilingualism, language acquisition research has focused on monolingual infants. Monolinguals cannot learn minimally different words (e.g., "bih" and "dih") in a laboratory task until 17 months of age (J. F. Werker, C. T. Fennell, K. M. Corcoran, & C. L. Stager, 2002). This study was extended to 14- to 20-month-old bilingual infants: a heterogeneous sample (English and another language; N = 48) and two homogeneous samples (28 English-Chinese and 25 English-French infants). In all samples, bilinguals did not learn similar-sounding words until 20 months, indicating that they use relevant language sounds (i.e., consonants) to direct word learning developmentally later than monolinguals, possibly due to the increased cognitive load of learning two languages. However, this developmental pattern may be adaptive for bilingual word learning.  相似文献   

14.
双语认知控制的神经基础及语言冲突解决能力   总被引:2,自引:0,他引:2  
人们在学习和使用第二语言时势必会出现母语(第一语言)对第二语言的干扰,这种冲突对于双语者和单语者产生不同的干扰。双语者能熟练解决冲突,选择正确的目标语的语言表征,这个过程也可被称做抑制控制(inhibitory control)。解决冲突的关键环节就是抑制冲突。在论述了双语制的研究现状、认知控制的神经基础上,着重探讨了双语制在语言冲突解决中的表现。  相似文献   

15.
Bilingual children's reading as a function of age of first bilingual language exposure (AoE) was examined. Bilingual (varied AoE) and monolingual children (N = 421) were compared in their English language and reading abilities (6–10 years) using phonological awareness, semantic knowledge, and reading tasks. Structural equation modeling was applied to determine how bilingual AoE predicts reading outcomes. Early exposed bilinguals outperformed monolinguals on phonological awareness and word reading. Phonology and semantic (vocabulary) knowledge differentially predicted reading depending on the bilingual experience and AoE. Understanding how bilingual experiences impact phonological awareness and semantic knowledge, and in turn, impact reading outcomes is relevant for our understanding of what language and reading skills are best to focus on, and when, to promote optimal reading success.  相似文献   

16.

In this study, (N62) 5- to 6-year-old English monolingual and unbalanced multilingual children attending public primary school education in Scotland became involved in collaborative Narrative Format (Taeschner, 2005) modern language activities in Spanish, both at school and at home. These activities were redesigned and adapted to serve as a quasi-experimental tool to provide a highly structured and intense linguistic input. The main purpose was to explore whether cognitive advantages previously found in balanced bilinguals and second-language-learning monolingual children involved in language immersion programmes could be extended to different types of beginning language learners in a non-immersion context. Depending on the monolingual vs bilingual ratios of children in the classroom, we distinguished between homogeneous groups (characterised by a ratio of 95% of first-language English-language monolinguals) and heterogeneous groups (children from both Scottish and migrant homes in roughly equal proportions). Using a standard task of early cognitive control, we found not only that unbalanced multilinguals perform above chance but also that there was a developing trend of enhanced performance for monolinguals learning languages in the heterogeneous groups. This suggests that not only the length of exposure and intensity of input but also the social classroom environment where children develop their language skills may also play an important role in the effects of bilingualism on executive functions.

  相似文献   

17.
对于儿童第二语言习得的关键期学术界尚未有定论,一般认为2岁至青春期前后特别是学前阶段是儿童学习第二语言的最佳时机。随着脑科学的发展以及对儿童认知发展规律的进一步认识,越来越多的实验研究表明在儿童早期阶段学习两种语言存在着明显的优势,更有利于儿童的语言、认知、智力、心理能力等方面的发展。在实施双语教育的地区,第二语言学习与双语教育要抓住最佳时机,家庭环境要尽早支持幼儿自然习得双语,正规学校系统要在学前阶段尽早开展双语教育。  相似文献   

18.
This article discusses two investigations which explored the bilingual language development outcomes of comparable groups of low-income, Spanish-speaking, Mexican American children who either did or did not attended a bilingual (Spanish/English) preschool. Study 1 is a replication of a study by Rodríguez, Díaz, Duran, and Espinosa, involving a new sample of 26 children who attended bilingual preschool for one year and 20 control children who remained at home. Study 2 represents a 1-year, longitudinal follow-up of Rodríguez et al.'s, sample of children during and after the children spent another year at home or in the preschool. In both investigations, standardized, objective measures of three components of children's language proficiency (productive language, receptive language, and language complexity) in English and Spanish were obtained at the beginning and end of the academic year. Contrary to fears that have been expressed by some that early exposure to English would lead to children's native language loss, the results of both studies offered no evidence of Spanish proficiency loss for children attending bilingual preschool. Children who attended bilingual preschool, compared to those who remained at home, showed significant and parallel gains in Spanish language development as well as significant and greater increases in English language proficiency over time. Results are discussed in terms of the need for more systematic research to be conducted in this area to inform policy and practice in the early education and development of language-minority children.  相似文献   

19.
This study evaluated the receptive vocabulary ability and nonverbal cognitive ability of 20 monolingual (Spanish-speaking) and 11 bilingual (Spanish/English-speaking) Mexican-American preschool children, ages 45 to 65 months. The children obtained significantly lower scores on the Peabody Picture Vocabulary Test-Revised (PPVT-R) than on the Perceptual Performance Scale of the McCarthy Scales of Children's Abilities. On both measures, the bilingual group obtained significantly higher scores than did the monolingual group. The results support prior recommendations that the PPVT-R not be used to estimate the intelligence level of Hispanic children.  相似文献   

20.
Given that gestures may provide access to transitions in cognitive development, preschoolers' performance on standard tasks was compared with their performance on a new gesture false belief task. Experiment 1 confirmed that children (N=45, M age=54 months) responded consistently on two gesture tasks and that there is dramatic improvement on both the gesture false belief task and a standard task from ages 3 to 5. In 2 subsequent experiments focusing on children in transition with respect to understanding false beliefs (Ns=34 and 70, M age=48 months), there was a significant advantage of gesture over standard and novel verbal-response tasks. Iconic gesture may facilitate reasoning about opaque mental states in children who are rapidly developing concepts of mind.  相似文献   

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