Is a single graphemic buffer used in reading and spelling?
Is a single graphemic buffer used in reading and spelling?
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DOI：
10.1080/02687030344000021
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发表时间：
2003-06-01
期刊：
影响因子：
2
通讯作者：
Rapp, B
中科院分区：
文献类型：
--
作者：
Tainturier, MJ;Rapp, B
背景资料：字形缓冲区最初被认为是一个组件，专门用于在拼写中的特定格式表达之前临时存储抽象的正字法表示（Caramazza，Miceli，Villa和Romani，1987）。从那时起，人们一直认为，字形缓冲区也参与了阅读（Caramazza，Capasso，& Miceli，1996）。目的：本研究的目的是测试的假设，一个单一的字形缓冲区是用于阅读和拼写。此外，我们研究的假设，在正常的阅读的情况下，单词和pseudowords放置在不同的需求，因为在何种程度上，他们可以处理global.Methods和程序的程度不同的字形缓冲区：我们进行了详细的分析的阅读和拼写表现的MC谁提出了阅读障碍（仅限于pseudowords）和书写困难切除左顶叶肿瘤。此外，我们比较了呈现格式（标准打印，镜像反转，和口头拼写的刺激）对单词和pseudoword naming.Outcomes & Results的影响：第一，MC的拼写障碍表现出所有的特征的字形缓冲赤字。第二，MC的单词和伪词的拼写以及他的伪词的阅读是非常相似的，在定量和定性（准相同分布的错误，长度效应，和错误位置曲线）。第三，MC对单词（但不是伪单词）的阅读在干扰全局（即，结论：本研究支持在阅读和拼写中使用单个字形缓冲区的主张。它还表明，阅读非单词的地方更大的要求比阅读单词的字形缓冲区。
Background: The graphemic buffer was originally conceived as a component dedicated to the temporary storage of abstract orthographic representations prior to their format-specific expression in spelling (Caramazza, Miceli, Villa, & Romani, 1987). Since then, it has been argued that the graphemic buffer is also involved in reading (Caramazza, Capasso, & Miceli, 1996).Aims: The goal of this study was to test the hypothesis that a single graphemic buffer is used in reading and spelling. In addition, we examined the hypothesis that, under normal reading circumstances, words and pseudowords place different demands on the graphemic buffer because of differences in the degree to which they can be processed globally.Methods & Procedures: We performed detailed analyses of the reading and spelling performance of MC who presented with dyslexia (restricted to pseudowords) and dysgraphia following resection of a left parietal lobe tumour. Additionally, we compared the effect of presentation format (standard print, mirror reversed, and orally spelled stimuli) on word and pseudoword naming.Outcomes & Results: First, MC's spelling impairment showed all the characteristics of a graphemic buffer deficit. Second, MC's spelling of words and pseudowords as well as his reading of pseudowords were remarkably similar, both quantitatively and qualitatively (quasi-identical distribution of errors, length effect, and error position curves). Third, MC's reading of words (but not pseudowords) was disrupted under conditions that interfered with global (i.e., whole-word) processing.Conclusions: This study supports the claim that a single graphemic buffer is used in reading and spelling. It also suggests that reading nonwords places greater demands on the graphemic buffer than reading words.