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1.
Jon Andoni Duñabeitia María Dimitropoulou Adelina Estévez Manuel Carreiras 《Mind, Brain, and Education》2013,7(2):124-135
The visual word recognition system recruits neuronal systems originally developed for object perception which are characterized by orientation insensitivity to mirror reversals. It has been proposed that during reading acquisition beginning readers have to “unlearn” this natural tolerance to mirror reversals in order to efficiently discriminate letters and words. Therefore, it is supposed that this unlearning process takes place in a gradual way and that reading expertise modulates mirror‐letter discrimination. However, to date no supporting evidence for this has been obtained. We present data from an eye‐movement study that investigated the degree of sensitivity to mirror‐letters in a group of beginning readers and a group of expert readers. Participants had to decide which of the two strings presented on a screen corresponded to an auditorily presented word. Visual displays always included the correct target word and one distractor word. Results showed that those distractors that were the same as the target word except for the mirror lateralization of two internal letters attracted participants' attention more than distractors created by replacement of 2 internal letters. Interestingly, the time course of the effects was found to be different for the 2 groups, with beginning readers showing a greater tolerance (decreased sensitivity) to mirror‐letters than expert readers. Implications of these findings are discussed within the framework of preceding evidence showing how reading expertise modulates letter identification. 相似文献
2.
The visual deficit hypothesis of development dyslexia has largely been abandoned because many of the phenomena that initially motivated it could not be replicated under controlled experimental conditions, while phonological processing deficits were found to provide a better explanation for the replicable phenomena. Nevertheless, many teachers and special educators continue to subscribe to the hypothesis that deficits of visual perception are a major cause of reading failure in dyslexia. As part of a larger family study, we reexamined the questions (1) whether probands and affected relatives in dyslexia families reverse easily confused letters more frequently under experimental conditions than normal readers from the same families, and (2) whether they show unusual facility in reading geometrically transformed text. The findings indicated that young dyslexia students reverse easily confused letters more often than normal readers. Reading group differences of letter reversal were significant in children from 7–10 years but not thereafter; and virtually no subject reversed letters when spelling whole words. Furthermore, dyslexic persons in every age group from 7–60 years actually took longer than normal readers to decode geometrically transformed text; and the time to decode transformed texts increased progressively with age after adolescence in both dyslexic persons and normal readers. Thus, reading group differences in decoding easily confused letters and reading geometrically transformed text do not support the visual deficit hypothesis and probably do not help to clarify the etiology of developmental dyslexia. 相似文献
3.
Kimberly J. O&#x;Malley David J. Francis Barbara R. Foorman Jack M. Fletcher Paul R. Swank 《Learning disabilities research & practice》2002,17(1):19-34
Poor readers who met low achievement and IQ‐discrepancy definitions of reading disability were compared with nonimpaired readers on their development of eight precursor and reading‐related skills to evaluate developmental differences prior to students’ identification as reading disabled. Results indicated no evidence for differences between the two groups of poor readers in the development of the eight skills, with three exceptions. Students in the IQ‐discrepant group demonstrated greater growth in letter sound knowledge, greater mean performance in visual‐motor integration at the beginning of first grade, and greater deceleration in rapid naming of letters. When compared to the nonimpaired group, low‐achieving readers demonstrated poorer performance and development in all skills, while the IQ‐discrepant readers demonstrated poorer performance and development in phonemic awareness, rapid naming of letters and objects, spelling, and word reading. The largely null results for comparisons between the two groups of poor readers challenges the validity of the two‐group classification of reading disabilities based on IQ‐discrepancy. 相似文献
4.
The majority of work on the double-deficit hypothesis (DDH) of dyslexia has been done at the letter and word levels of reading. Key research questions addressed in this study are (a) do readers with different subtypes of dyslexia display differences in fluency at particular reading levels (e.g., letter, word, and connected text)? and (b) do children with dyslexia identified by either low-achievement or ability-achievement discrepancy criteria show similar differences when classified by the DDH? To address these questions, the authors assessed a sample of 158 children with severe reading impairments in second and third grades on an extensive battery and classified them into three reader subtypes using the DDH. The results demonstrated that the three DDH subtypes exhibited differences in fluency at different levels of reading (letter, word, and connected text), underscoring the separate reading profiles of these subtypes and the different possible routes to dysfluency in reading disabilities. Furthermore, the results suggest that the different patterns among DDH subtypes are primarily driven by the ability-achievement discrepancy group. The implications of these findings are discussed for intervention, reading theory, and a more refined understanding of heterogeneity. 相似文献
5.
This study explores early stages of reading acquisition, specifically therelation of phoneme blending and letter recoding to individual differencesin word decoding. The hypothesis was that facility in letter recoding andaccuracy of phoneme blending are substantial components of word decodingin beginning readers but not for skilled reading and that reliance onphoneme-sized decoding of words would dissipate as reading proficiencyincreased. In four studies we examined the ability to recode letters, blendphonemes and decode words in four groups of Dutch children (early Grade1, N = 130, older Grade 1, N = 81, Grade 3, N = 54 and a group of children witha reading lag, N = 356). Phoneme blending was only related to the readingability of beginning Grade 1 children. By the end of Grade 1 ability to blendphonemes did not differentiate reading capacity, nor for older children inGrade 3 and reading disabled children. Letter recoding was related to worddecoding in all four studies, although the strength of that relation diddwindle as reading skill level increased. The results of the study appearconsistent with self teaching hypothesis and other theories that imply atransient role of explicit phonological recoding in word identification. 相似文献
6.
Daniela Traficante Marco Marelli Claudio Luzzatti Cristina Burani 《Reading and writing》2014,27(7):1303-1326
Several studies on children and adults with and without linguistic impairment have reported differences between verb and noun processing. The present study assessed whether noun and verb bases affect differently children’s reading of derived words. Thirty-six Italian good readers and 18 poor readers, all 4th or 5th graders, were asked to read aloud nouns derived from either a noun base (e.g., artista, artist) or a verb base (e.g., punizione, punishment). Word and base frequency affected latencies only for deverbal nouns, while an effect of word length emerged for denominal nouns and an inhibitory effect of suffix length was found for both types of stimuli. A high base frequency and a high whole-word frequency both led to higher levels of accuracy. Verb bases led to higher error rates than noun bases. Poor readers, although slower and less accurate than good readers, showed a pattern of results similar to that of typically developing readers. Data confirm that in 4th and 5th graders morphological decomposition may affect reading aloud of long complex words, and that the grammatical class of the base can modulate this effect. 相似文献
7.
The present study was designed to examine the question of whether developmental dyslexia in 12-year-old students at the beginning
of secondary education in the Netherlands is confined to problems in the domain of reading and spelling or also is related
to difficulties in other areas. In particular, hypotheses derived from theories on phonological processing, rapid automatized
naming, working memory, and automatization of skills were tested. To overcome the definition and selection problems of many
previous studies, we included in our study all students in the first year of secondary special education in a Dutch school
district. Participants were classified as either dyslexic, garden-variety, or hyperlexic poor readers, according to the degree
of discrepancy between their word recognition and listening comprehension scores. In addition, groups of normal readers were
formed, matching the poor readers in either reading age or chronological age. A large test battery was administered to each
student, including phonological, naming, working memory, speed of processing, and motor tests. The findings indicate that
dyslexia is associated with deficits in (1) phonological recoding, word recognition (both in their native Dutch and in English
as a second language), and spelling skills; and (2) naming speed for letters and digits. Dyslexia was not associated with
deficits in other areas. The results suggest that developmental dyslexia, at the age of 12, might be (or might have become)
a difficulty rather isolated from deficiencies in other cognitive and motor skills. 相似文献
8.
This study examined individual differences among beginning readers of English as a foreign language (EFL). The study concentrated
on the effects of underlying first language (L1) knowledge as well as EFL letter and vocabulary knowledge. Phonological and
morphological awareness, spelling, vocabulary knowledge, and word reading in Hebrew L1, in addition to knowledge of EFL letters
and EFL vocabulary, were measured. The study also investigated the effect of socioeconomic background (SES) on beginning EFL
readers. Participants included 145 fourth graders from three schools representing two socioeconomic backgrounds in the north
of Israel. The results indicate that knowledge of English letters played a more prominent role than knowledge of Hebrew L1
components in differentiating between strong and weak EFL readers. The Linguistic Coding Differences Hypothesis was supported
by L1 phonological awareness, word reading, and vocabulary knowledge appearing as part of discriminating functions. The presence
of English vocabulary knowledge as part of the discriminant functions provides support for English word reading being more
than just a decoding task for EFL beginner readers. Socioeconomic status differentiated the groups for EFL word recognition
but not for EFL reading comprehension. 相似文献
9.
Jarkko Hautala Mikko Aro Kenneth Eklund Marja-Kristiina Lerkkanen Heikki Lyytinen 《Reading and writing》2013,26(6):845-864
The role of letters and syllables in typical and dysfluent second grade reading in Finnish, a transparent orthography, was assessed by lexical decision and naming tasks. Typical readers did not show reliable word length effects in lexical decision, suggesting establishment of parallel letter processing. However, there were small effects of word syllable structure in both tasks suggesting the presence of some sublexical processing also. Dysfluent readers showed large word length effects in both tasks indicating decoding at the letter-phoneme level. When lexical access was required in a lexical decision task, dyslexics additionally chunked the letters into syllables. Response duration measure revealed that dysfluent readers even sounded out the words in phoneme-by-phoneme fashion, depending on the task difficulty. This letter-by-letter decoding is enabled by the transparent orthography and promoted by Finnish reading education. 相似文献
10.
This study investigated the effect of Arabic vowels and Arabic context on reading accuracy of poor and skilled native Arabic readers reading narrative stories and newspaper articles. Central to this study is the belief that reading theory today should consider additional variables, especially when explaining the reading process in Arabic orthography among poor and skilled readers. This orthography has not been studied: reading theory today is the sum of conclusions from studies conducted in Latin orthography. The subjects were 109 tenth-grade native Arabic speakers, 39 of them poor readers and 70 skilled readers. Subjects had to read Arabic narrative stories and newspaper articles. There were four reading conditions for each text type: vowelized text, unvowelized text, vowelized word naming, and unvowelized word naming. The results showed that vowels and contexts were important variables to facilitate word recognition in poor and skilled readers in Arabic orthography. A new Arabic reading model for skilled readers is suggested. 相似文献
11.
The goal of the study was to examine the association between visual‐attentional span and lexical decision in skilled adult readers. In the span tasks, an array of letters was presented briefly and recognition or production of a single cued letter (partial span) or production of all letters (whole span) was required. Independently of letter recognition and phoneme awareness, width of partial recognition span predicted substantial variance only in detection of letter misorderings in words, while partial span efficiency made small contributions to decisions on regular words and pseudowords, but not strange words. With a production format and the inclusion of short‐term phonological memory, neither partial‐span nor whole‐span measures contributed positive independent variance to word and nonword decisions. The results provide meagre support for the idea that skilled adult readers with a wide visual‐attentional span might process words more effectively than those with a narrow span during lexical decision. 相似文献
12.
Joseph R. Jenkins Lynn S. Fuchs Paul Van Den Broek Christine Espin Stanley L. Deno 《Learning disabilities research & practice》2003,18(4):237-245
The purpose of this study was to examine (1) the performance levels and the magnitude of performance difference between students with reading disabilities (RD) and skilled readers when reading a typical classroom text; (2) the hypothesis that students with RD have specific difficulty using context in such a way that reading fluency is affected; and (3) whether RD subtypes may be differentiated according to performance on contextual and context‐free reading tasks. Two groups of fourth graders (85 skilled readers and 24 students with RD) completed a standardized test of reading comprehension, read aloud a folktale, and read aloud the folktale's words in a randomly sequenced list. Performance was scored as correct rate and percentage correct. Based on the number of words per idea unit in the passage, we also estimated the rate at which reader groups encountered and processed text ideas. Compared to the RD group, skilled readers read three times more correct words per minute in context, and showed higher accuracy and rates on all measures. Both context and isolated word‐reading rates were highly sensitive to impairment. We found no evidence for RD subtypes based on these measures. Results illustrate differences in reading levels between the two groups, the temporal advantage skilled readers have in linking text ideas, how word reading differs as a function of task format and performance dimension, and how limited word‐identification skills (not comprehension) produce contextual reading difficulties for students with RD. 相似文献
13.
This study investigated the relations of three aspects of morphological awareness to word recognition and spelling skills
of Dutch speaking children. Tasks of inflectional and derivational morphology and lexical compounding, as well as measures
of phonological awareness, vocabulary and mathematics were administered to 104 first graders (mean age 6 years, 11 months)
and 112 sixth graders (mean age 12 years, 1 month). For the first grade children, awareness of noun morphology uniquely contributed
to word reading, and none of the morphological tasks were uniquely associated with spelling. In grade 6, derivational morphology
contributed both to reading and spelling achievement, whereas awareness of verb inflection uniquely explained spelling only.
Lexical compounding did not uniquely contribute to literacy skills in either grade. These findings suggest that awareness
of both inflectional and derivational morphology may be independently useful for learning to read and spell Dutch. 相似文献
14.
One explanation for the relationship between serial rapid naming (SRN) and reading is that SRN affects the temporal proximity
of the phonological activation of the letters in a word, which, in turn, influences the acquisition of orthographic knowledge.
To test this hypothesis, a group of Dutch first grade children was trained in the rapid serial naming of letter sounds. In
addition, a no-training control group and a serial addition training group were included. Various measures of SRN and of reading
were administered to evaluate the effect of the training. Before the training, we found a symbol-specific relationship between
SRN and reading: the relationship of reading with letter-sound naming was higher than its relationship with number naming.
The training of serial letter-sound naming was not successful. In contrast, the serial addition training was highly effective.
We conclude that it might be difficult to quickly improve the serial rapid naming of letter sounds in beginning readers. 相似文献
15.
Eleni Morfidi Aryan van der Leij Peter F. de Jong Femke Scheltinga Judith Bekebrede 《Reading and writing》2007,20(8):753-784
The present study investigated the reading of secondary school students in their first and second language (L1, L2). Twenty-six
average and twenty-six poor readers matched on age, gender, listening and reading comprehension participated. They were native
Dutch speakers who started learning English at secondary school (grade 7). We examined whether differences in L2 between the
two groups reflect differences in L1 with regard to reading and relevant subskills. In addition, the relationship between
reading and its predictors within and across the two languages was investigated. Between group differences were similar in
L1 and L2 when task conditions involved high levels of phonological and orthographic complexity or demanded speeded processing.
Furthermore, serial rapid naming predicted speeded word reading in both languages and L2 text reading accuracy, while L2 phoneme
awareness and orthographic knowledge explained unique variance in L2 text reading accuracy. Cross-linguistic prediction revealed
that speeded word reading predicted its counterpart from L1 to L2 and vice versa. Serial rapid naming explained additional
variance in the prediction of L2 from L1. After exclusion of the reading predictor from the model, serial rapid naming was
the most consistent cross-linguistic predictor, while L2 orthographic knowledge explained a small amount of unique variance
in L1 speeded word reading. 相似文献
16.
Bruce A. Murray Mary Jane McIlwain Chih‐hsuan Wang Geralyn Murray Stacie Finley 《Journal of Research in Reading》2019,42(1):123-136
Learning irregular words involves mental marking of irregular letters in the spelling, a process not fully understood. In a within‐subjects experiment, we manipulated the type of scaffolding given to beginning readers to evoke mental marking. We pretested to sort 103 kindergarten and first‐grade participants into sequential decoders, who decode letter by letter, and hierarchical decoders, who recognise vowel patterns. In the control phase, children read irregular words in sentence contexts with minimal scaffolding. In the experimental phase, participants read additional irregular words in sentence contexts by ‘operating on the word’ to mark irregular letters. Results indicated that the experimental condition induced better untimed word reading, but it did not improve spelling or reading in a flash presentation. Hierarchical decoders were significantly more successful than sequential decoders in untimed word reading, spelling and reading in the flash presentation. These results suggest that learning hierarchical decoding predisposes readers to learn irregular words. 相似文献
17.
Roxanne F. Hudson Joseph K. Torgesen Holly B. Lane Stephen J. Turner 《Reading and writing》2012,25(2):483-507
Despite the recent attention to text reading fluency, few studies have studied the construct of oral reading rate and accuracy
in connected text in a model that simultaneously examines many of the important variables in a multi-leveled fashion with
young readers. Using Structural Equation Modeling, this study examined the measurement and structural relations of the rate
and accuracy of variables important in early reading: phonemic blending, letter sounds, phonograms, decoding, single-word
reading, reading comprehension, and text reading as well as reading comprehension among second grade readers. The effects
from phonemic blending fluency and letter sound fluency to decoding were completely mediated by phonogram fluency, decoding
fluency, single-word reading fluency, and reading comprehension had direct effects on the text reading fluency of the second
grade students. Understanding the relationship among the many component skills of readers early in their reading development
is important because a deficiency in any of the component skills has the potential to affect the development of other skills
and, ultimately, the development of the child as a proficient reader. 相似文献
18.
Josephine C. Jenkinson 《International Journal of Disability, Development & Education》1992,39(1):61-76
TWO EXPERIMENTS were designed to investigate possible deficiencies in strategies used for decoding words by children with an intellectual disability. The experiments focused specifically on the use of letter position cues as aids to word identification. In Experiment 1,20 children with an intellectual disability (ID) aged 10 to 12 years were matched with two groups of nondisabled children, one for mental age (MA) and one for chronological age (CA), on a visual search task, with response times to array types (word, pseudoword, or nonword) and target position in positive arrays as the dependent variable. The ID group showed response time advantages only when the target letter was in the initial position of an array; however both nondisabled groups responded faster when the target letter was in either the initial or final position, compared to the medial position, and this pattern occurred for words (MA group) and words and pseudowords (CA group) but not for nonwords. Experiment 2 extended the investigation to the oral reading of isolated words. In substitution errors made by children with an intellectual disability, the incorrect word tended to resemble the test word only in the initial letter. In errors made by MA‐matched children, however, both the initial and final letters tended to be the same as those in the test word, suggesting that these are salient cues to word recognition. The findings are interpreted with reference to previous work on early reading acquisition and to research which suggests a more generalised deficiency in the acquisition and use of strategies by ID subjects in cognitive tasks. 相似文献
19.
Besides phonotactic principles, orthographies entail graphotactic rules for which the reader must convert a phonological representation on the basis of spelling adaptation rules. In the present study, the learnability of such rules will be investigated with reference to Dutch. Although Dutch orthography can be considered highly regular, there are graphotactic rules that change letter sequences in plural noun formation. In a lexical decision experiment, the acquisition and use of such rules were examined. Participants were groups of 31 children from Grade 3 and 34 children from Grade 6, and 25 adults. The results showed that both children and adults are significantly less accurate and slower in recognizing plural word forms which undergo vowel change as a consequence of pluralization. It is concluded that graphotactic rules in Dutch orthography complicate Dutch word identification from an early stage of development and continue to play a complicating role in the word identification process of adult readers. In the discussion it is shown that current models fail to fully explain the processing of graphotactic rules in visual word identification. 相似文献
20.
Roxanne F. Hudson Carole Isakson Taylor Richman Holly B. Lane Stephanie Arriaza‐Allen 《Learning disabilities research & practice》2011,26(1):15-27
In this study, we compared methods to improve the decoding and reading fluency of struggling readers. Second‐grade poor readers were randomly assigned to one of the two practice conditions within a repeated reading intervention. Both interventions were in small groups, were 20–28 min long, took place 2–4 days per week, and consisted of phonemic awareness training, letter sound practice, and practice in word families. Students in the accuracy condition (n= 27) practiced each page until they reached 98 percent accuracy while students in the accuracy + automaticity condition (n= 29) practiced until they reached rate (30–90 cwpm) and accuracy criteria. Hierarchical linear modeling revealed no differences between practice conditions in decoding accuracy, reading comprehension, and grade‐level text reading fluency. Significant differences favoring the accuracy + automaticity group were found in measures of decoding automaticity. 相似文献