共查询到18条相似文献，搜索用时 93 毫秒
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本文主要从理论与实践两方面对基于阅读成分理论的阅读障碍"成分模型"的理论基础、检测及亚类型鉴定操作原理以及可行性和有效性进行详细阐释;同时简要分析了汉语阅读过程潜在成分及其性质以及"成分模型"在汉语阅读障碍检测中可行性探究,旨在为汉语阅读障碍检测及亚类型鉴定提供一个基于阅读成分理论,以干预为导向,科学合理、简便易施的理论模型,以避免单一采用"差异模型"进行阅读障碍检测的弊端以及我国阅读障碍检测及亚类型鉴定方面存在的混乱现象,促使汉语阅读障碍检测及亚类型鉴定朝着更加科学化的方向前进. 相似文献
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汉语发展性阅读障碍是儿童中广泛存在的一种学习障碍,由于其研究的滞后性,国内对于其的诊断、分型以及干预的资料还比较少,这极大影响了汉语发展性阅读障碍的理论研究与实践应用。通过对目前国外内研究的梳理,分析了汉语发展性阅读障碍的流行病学资料、临床诊断的一般参考及实验室研究者的发现、分型,并对汉语发展性阅读障碍儿童的早期干预从难点、宏观对策以及具体干预方面做了分析。 相似文献
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汉语阅读障碍研究是近年来我国学习困难领域研究的热点,我国近10年来对汉语阅读障碍儿童的语言加工研究主要涉及语音意识、语素意识、正字法加工、语义加工四个方面。作者对这四方面的研究内容进行了归纳分析,同时对现有研究的趋势及不足进行了初步探讨。 相似文献
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比较汉语发展性阅读障碍儿童和阅读正常儿童完成同音语素分辨任务和语素构词任务的情况,测查汉语发展性阅读障碍儿童的语素分辨及运用能力。研究一考察了语素分辨能力,结果发现:与阅读正常儿童相比,阅读障碍儿童完成语素分辨任务的反应时更长、准确率更低。研究二考察了语素运用能力,结果发现:与阅读正常儿童相比,阅读障碍儿童完成语素运用相关任务的反应时更长、正确率更低。两个研究的结果提示我们,汉语发展性阅读障碍儿童存在语素意识缺陷,从语素分辨能力到语素运用能力的落后,说明语素意识缺陷是造成汉语发展性阅读障碍的重要原因,汉语的语素意识在儿童阅读中起着至关重要的作用。 相似文献
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发展性阅读障碍与早期语音训练 总被引：4，自引：0，他引：4
本文从阅读障碍的语音缺陷、语音训练来评述主要以英语为母语的阅读障碍儿童早期语音训练的现状和成果,并在此基础上结合我国汉语阅读障碍的特点,提出在我国开展汉语阅读障碍儿童早期干预的思路。 相似文献
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汉语阅读障碍儿童与普通儿童朗读错误研究 总被引：1，自引：0，他引：1
为反映汉语阅读障碍儿童朗读的特点,采用错误分析技术,对10名汉语阅读障碍儿童和10名普通儿童的朗读错误进行了系统的分析.结果发现:汉语阅读障碍儿童朗读流畅性与准确性都低于普通儿童,朗读中的替代错误、添加错误、省略错误都显著多于普通儿童.而二者在颠倒错误上的差异不显著.在替代错误中,音似、形似、语义及无关替代显著地多于普通儿童.与普通儿童相比,汉语阅读障碍儿童的朗读问题主要表现为错误数量更多,而不是表现为错误类型上的特点.最后结合研究发现对阅读障碍的诊断与干预提出了建议. 相似文献
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语音意识是一种元语言能力,是人们对各种语音单位产生的意识。语音意识研究最早源于表音文字,语音意识的定义及研究范式均在字母文字的基础上建立。由于汉语的特性,汉语语音意识研究的范式和重点不同于国外同类研究,主要侧重于汉语语音意识与发展性阅读障碍关系的研究以及汉语语音意识发展的研究等。汉语相关的语音意识研究对汉语教学具有独特的价值。 相似文献
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《佳木斯教育学院学报》2016,(6)
在汉语发展性阅读障碍研究领域,研究者越来越关注语素意识。而语素意识缺陷是否为汉语阅读障碍的核心缺陷,这一争论到目前尚未有定论。不过,语素意识在汉语阅读中确实有着非常重要的作用。本文通过查阅各种文献,对汉语发展性阅读障碍的语素意识缺陷研究做了一个梳理。 相似文献
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翁晓倩 《闽西职业技术学院学报》2012,14(3):58-61
近年来快速命名与发展性阅读障碍的研究,主要讨论了快速命名对发展性阅读障碍产生预测性作用的主要原因:语音能力、正字法能力和任意性的形音联结.虽然鲜有研究涉及任意性的形音联结,但这个因素在形音关系不透明的汉语中,可能与阅读过程和快速命名都存在很大的相关性.今后应设立一个有效的统一的鉴别发展性阅读障碍儿童的标准,逐渐形成中文阅读发展的体系. 相似文献
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研究表明拼音文字系统的发展性阅读障碍者与以中文为代表的表意文字系统的发展性阅读障碍者在阅读过程中大脑的激活部位存在差异。关于母语阅读障碍儿童对第二语言学习的影响是近年来发展性阅读障碍研究的热点。双语发展性阅读障碍的理论假设主要有两种语言相互依赖假设和正字法依赖假设。前者认为母语的阅读障碍可以自动迁移到第二语言的学习中;后者认为母语的阅读障碍是否会迁移到第二语言的学习中,要依赖两种语言的正字法特征。我们认为这两种理论不是相互矛盾的,阅读障碍是否会同时出现在两种语言中可能取决于这两种语言是否共用了相同的有缺陷的神经系统。 相似文献
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This study evaluated the effect of sound-symbol association training on visual and phonological memory in children with a history of dyslexia. Pretests of phonological and visual memory, a sound-symbol training procedure, and phonological and visual memory posttests were administered to children with dyslexia, to children whose dyslexia had been compensated through remedial training, and to age- and reading level-matched comparison groups. Deficits in visual and phonological memory and memory for sound-symbol associations were demonstrated in the dyslexia group. For children with dyslexia and children whose dyslexia had been remediated, the sound-symbol training scores were significantly associated with word and pseudoword reading scores and were significantly lower than those of the comparison groups. Children with dyslexia and children whose dyslexia had been compensated showed significantly less facilitation of phonological memory following the training than did typical readers. Skilled readers showed some reduction in accuracy of visual memory following the training, which may be the result of interference of verbalization with a predominantly visual task. A parallel decrease was not observed in the children with dyslexia, possibly because these children did not use the verbal cues. Children with dyslexia and children whose dyslexia had been compensated seemed to have difficulty encoding the novel sounds in memory. As a result, they derived less phonological memory advantage and less visual memory interference from the training than did typical readers. Children in the compensated dyslexia group scored lower on sound-symbol training than their age peers. In other respects, the scores of these children were equivalent to those of the typically reading comparison groups. Children in the compensated dyslexia group exhibited higher phonological rehearsal, iconic memory, and associative memory scores than children in the dyslexia group. Implications for the remediation of dyslexia are discussed. 相似文献
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阅读障碍是指词汇加工能力受损;而发展性阅读障碍是个体成长中出现的阅读障碍。一般从认知角度和生理基础角度出发研究阅读障碍的成因。通过对生理基础取向研究的回顾我们发现,发展性阅读障碍者阅读过程中的障碍存在脑部机能缺陷,主要包括脑电异常和脑功能异常。未来的研究应更加关注阅读障碍的定义,使之明确化;研究方法和手段要多元化;要开展多学科合作研究。 相似文献
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The aim of this study was to investigate the theory that visual magnocellular deficits seen in groups with dyslexia are linked
to reading via the mechanisms of visual attention. Visual attention was measured with a serial search task and magnocellular
function with a coherent motion task. A large group of children with dyslexia (n = 70) had slower serial search times than a control group of typical readers. However, the effect size was small (η
p2 = 0.05) indicating considerable overlap between the groups. When the dyslexia sample was split into those with or without
a magnocellular deficit, there was no difference in visual search reaction time between either group and controls. The data
suggest that magnocellular sensitivity and visual spatial attention weaknesses are independent of one another. They also provide
more evidence of heterogeneity in response to psychophysical tasks in groups with dyslexia. Alternative explanations for poor
performance on visual attention tasks are proposed along with avenues for future research. 相似文献
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P. G. Aaron 《Annals of dyslexia》1993,43(1):110-124
Traditionally, it has been speculated that weaknesses in the visual processing of cognitive aspects of the written word could lead to reading problems, and if so, such a condition would constitute a subtype of developmental dyslexia. This putative subtype has been referred to as visual dyslexia. In this article, the role of cognitive deficits that are visual in nature as a potential etiological factor of developmental dyslexia is examined. Following a brief history of the study of dyslexia, a critique of studies of visual dyslexia is presented. Subsequently, the nature of the visual processes involved in word- recognition is examined. Finally, three research studies that assessed the contribution of visual memory to word-recognition are presented. It is concluded that, even though defects in the physiological aspects of visual processing can lead to reading difficulties, at present little convincing evidence is available to conclude that a subtype of dyslexia caused by cognitive deficits associated with visual processing of information exists. 相似文献
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This paper describes two studies that examined the lexical tone awareness of Chinese children both with and without dyslexia at different primary school ages.Study 1 examined the contributions of lexical tone awareness to distinguish children with and without dyslexia with respect to their Chinese character reading skills. Two hundred and seventy Chinese children participated in Study 1. Ninety of these were children with dyslexia (equally recruited from second, fourth, and sixth grades). Moreover, ninety children functioned as a chronological-age control group, and an additional ninety children functioned as a reading-level control group. The participants were tested for nonverbal intelligence, Chinese character reading, and cognitive-linguistic skills and lexical tone awareness. Our results revealed a later developmental ceiling in Chinese children with dyslexia than in those without dyslexia. Furthermore, children’s lexical tone awareness could serve to distinguish children with dyslexia from typically developing children in all primary school years.Study 2 compared the lexical tone awareness and Chinese character reading skills of Chinese children with dyslexia both before and after introducing the Perceptual Training Method. The participants in this study consisted of all the participants with dyslexia from Study 1, and the measurements were the Chinese character reading test and the lexical tone awareness task from Study 1. Our results revealed that only second-grade children with dyslexia gained substantially from the training on both lexical tone awareness and character naming, whereas those in the fourth grade obtained a significant improvement only on lexical tone awareness. 相似文献
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Visual persistence was investigated in adults with and without dyslexia in order to determine whether the adults with dyslexia demonstrate problems similar to those found in childhood dyslexia. Using a temporal separation threshold measure and procedures derived from signal detection theory, sensitivity to sequentially presented form information was determined for the two types of adults. The results showed that the sensitivity of the adults with dyslexia was impaired relative to that of the nondisabled adults when parts of a test stimulus were presented to adjacent retinal areas. This result suggests that, under certain conditions, visual persistence is longer for adults with dyslexia. The results are discussed within the context of a recent theory of dyslexia (Lovegrove, Martin & Slaghuis, 1986) that incorporates the operation of sustained and transient visual mechanisms. 相似文献