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1.
A 3-group reading-level design was used to investigate phonological analysis, verbal working memory, and pseudoword reading performance in less skilled fourth-grade readers. Children were given phonological oddity tasks assessing their sensitivity to subsyllabic and phonemic units, together with standardized tests of verbal working memory and pseudoword reading. Less skilled fourth-grade readers performed lower than both chronological age and reading-level controls on the phonological oddity and pseudoword reading tests. Less skilled fourth-grade readers performed at the same level as skilled second-grade readers on a test of verbal working memory. Skilled fourth-grade readers scored higher than both other groups on this test. Correlational analyses were consistent with the view that phonological analysis skills contribute more strongly than verbal working memory skills to children's decoding abilities. 相似文献
2.
Although weaknesses in metaphonological skills are well-documented in poor readers, prior studies have yielded inconsistent
findings as to whether less-skilled readers also have deficits in the more primary phonological processes entailed in verbal
working memory and speech production tasks. The present study was designed to examine this issue by comparing less-skilled
third-graders readers (n=30) with younger children at the same reading level (n=30) and with more-skilled agemates (n=30)
on a variety of tasks that require phonological processing (i.e., three “verbal memory” tasks [word span, span with concurrent
processing, pseudoword imitation] and three “speech production” tasks [word-pair repetition, tongue twisters, rapid naming]).
The results were striking: the less-skilled third-grade readers had significantly lower accuracy scores than both their agemates
and the younger normal readers on the word span, pseudoword imitation, word-pair repetition, and tongue twister tasks. Measures
of accuracy were more related to reading ability than were measures of speed. Performance on a pseudoword imitation task was
the variable most strongly linked to reading achievement. 相似文献
3.
4.
Dyslexia and the double deficit hypothesis 总被引：1，自引：4，他引：1
Nathlie A. Badian 《Annals of dyslexia》1997,47(1):69-87
The double deficit hypothesis (Bowers and Wolf 1993) maintains that children with both phonological and naming-speed deficits
will be poorer readers than children with just one or neither of these deficits. In the present study, we drew on this hypothesis
to help understand why some children have a serious reading impairment. In addition, by adding an orthographic factor, we
extended it to a triple deficit hypothesis. Participants were 90 children aged 6 to 10 years. Dyslexic children, whose reading
was low for age and for expected level, garden-variety poor readers, reading-level matched younger children, and low verbal
IQ good readers, were compared. The dyslexic group was significantly lower then the garden-variety poor readers and the low
verbal IQ good readers on most measures, and lower than the younger group on phonological measures. Findings support the double
deficit hypothesis of Bowers and Wolf, and also the triple deficit hypothesis. Most of the poorest readers, nearly all of
whom qualified as dyslexic, had a double or triple deficit in phonological, naming-speed, and orthographic skills. Conclusions
were that dyslexia results from an overload of deficits in skills related to reading, for which the child cannot easily compensate. 相似文献
5.
Leila Kairaluoma Minna Torppa Jari Westerholm Timo Ahonen Mikko Aro 《Scientific Studies of Reading》2013,17(5):315-332
We examined the nature of and factors related to adolescents’ reading difficulties in a highly transparent orthography. We compared word, pseudoword, and text reading speed and accuracy, rapid naming (RAN) and phonological processing between poor readers (n?=?80) and normally developing readers (n?=?189). Reading problems were manifested in reading speed and in timed pseudoword reading accuracy. RAN predicted speed, and phonological processing predicted accuracy of reading in both groups. Among poor readers, RAN also explained reading accuracy. For the normally developing sample, phonological processing also predicted reading speed. 相似文献
6.
The current study examined the nature of deaf readers’ phonological processing during online word recognition, and how this
compares to similar effects in hearing individuals. Unlike many previous studies on phonological activation, we examined whether
deaf readers activated phonological representations for words as opposed to pseudohomophones. Both hearing and deaf adults
performed lexical decisions on homophones and control words in the context of either pseudoword foils (e.g., CLANE) or pseudohomophone
foils (e.g., BRANE). As expected, hearing readers responded more slowly to homophones than to control words in both non-word
contexts, reflecting phonological activation during reading. In contrast, deaf readers responded more slowly to homophones
than to control words in the pseudohomophone foil context, but not in the pseudoword foil context. This finding suggests that
deaf readers are able to activate phonological representations; however the nature of these representations appears to be
more coarse-grained in deaf readers. 相似文献
7.
The main hypotheses addressed in the research were (1) whether imprecision in the phonological representations of lexical
items underlies the impaired expressive naming abilities of disabled readers, and (2) whether weak verbal memory might mediate
the relationship between naming and reading skills. From samples of 93 first graders and 67 fourth graders, extreme groups
of good and poor readers were identified and compared on measures of receptive vocabulary, expressive naming, acceptability
judgments for variants of object names, imitation and correction of naming errors by another speaker, pseudoword repetition,
and long-term memory. Performance was generally better by older than younger students and by good than poor readers at each
age, with little interaction between grade and reader group. The results indicated that for both good and poor readers, imprecise
phonological knowledge, especially about long words, contributed to children’s difficulties on all naming tasks. Memory differences,
however, appeared to play only a minor role in explaining the strong association between naming and reading. 相似文献
8.
In order to become expert readers of an alphabetical language like French, students must develop and adequately use phonological knowledge. Considering that the phonological knowledge used in reading largely comes from knowledge of the oral language, what happens when the oral language is not accessible, as is the case for many deaf children? In this study, graphophonemic and syllabic processes in pseudoword reading were assessed with a similarity judgment task. Gestual deaf subjects aged 10–18 years old (N = 24) were compared to 24 age-matched hearing subjects. The results show that deaf readers are less sensitive to the graphemic and the syllabic structures of pseudo-words than hearing readers. In deaf subjects, the results are different than chance-level in the 13–15 and the 16–18-year-old groups. These results indicate that gestual deaf readers can develop phonological knowledge even in settings where sign language is promoted. 相似文献
9.
This study investigated qualitative differences in poor readers relative to normally achieving readers of the same reading level. Thirty-eight 9-year-old poor readers and forty 7- and 8-year-old reading-age-matched normally achieving readers from the United Kingdom were matched in phonemic processing and then given tests of memory span and visual discrimination of letter-like characters, were required to read different word types (regular, exception, and pseudoword), and were asked to complete a homophonic pseudoword test. The poor readers were worse at reading pseudowords compared to the controls, but this difference was unrelated to phonemic length of number of letters, or to the ease of producing analogies for the pseudowords. The results suggest that although there are no differences with reading-age controls in phonological processing, poor readers have worse grapheme-phoneme conversion skills and greater reluctance to relinquish the lexical route when appropriate. The results also showed that poor readers were slightly better at visual discrimination but had poorer memory spans. 相似文献
10.
Alexandra Gottardo Penny Collins Iuliana Baciu Robert Gebotys 《Learning disabilities research & practice》2008,23(1):11-24
We examined the components of first (L1) and second language (L2) phonological processing that are related to L2 word reading and vocabulary. Spanish‐speaking English learners (EL) were classified as average or low readers in grades 1 and 2. A large number of children who started out as poor readers in first grade became average readers in second grade while vocabulary scores were more stable. Binary logistic regressions examined variables related to classifications of consistently average, consistently low, or improving on reading or vocabulary across grades. Good L2 phonological short‐term memory and phonological awareness scores predicted good reading and vocabulary scores. L1 and L2 measures differentiated consistently good performers from consistently low performers, while only L2 measures differentiated children who improved from children who remained low performers. Children who are EL should be screened on measures of pseudoword repetition and phonological awareness with low scorers being good candidates for receiving extra assistance in acquiring L2 vocabulary and reading. This study suggests measures that can be used to select children who have a greater likelihood of experiencing difficulties in reading and vocabulary. 相似文献
11.
Previous research has indicated a relationship between reading ability and the integrity of certain phonological processing skills--skills that operate on the sound structure of language. This study shows how the deficient phonological processing skills of poor beginning readers can impair their comprehension of spoken phrases and sentences that are disambiguated by prosodic cues (i.e., pitch, stress, and pause). Following a brief summary of the available research literature, two new experiments are reported to illustrate that poor readers do not interpret certain sentences as accurately as good readers do, because they are less able to hold phonological material temporarily in working memory. Further insight into the basis of these differences between good and poor readers is provided by two additional pieces of evidence: The differences between good and poor readers are analogous to those between older and younger children readers, and the performance of poor readers tends to resemble that of younger children reading at their same level (i.e., reading-ability-matched controls). Apparently, good and poor readers tend to differ in the rate at which they develop phonological processing skills. 相似文献
12.
The present study examined factors that influence the process of learning to read in a second language. The Hebrew reading
comprehension skills of 68 Russian-speaking children (mean age 7 years 6 months) were screened at the start of Grade 2. From
this sample, 40 participants were selected: 20 successful learners and 20 unsuccessful learners. These two groups were then
tested on a wide range of language skills (e.g., phonological processing, vocabulary, syntactic and morphological awareness)
in both languages (Hebrew and Russian) and reading skills in Hebrew (e.g., reading speed and accuracy).
Two factors, level of spoken Hebrew and phonological awareness deficits in both languages, were significant. Phonological
awareness difficulties constituted the key factor associated with poor decoding whereas insufficient mastery of spoken Hebrew
was important in the case of reading comprehension. An interesting dissociation was also found in our poor readers between
impaired phonological awareness and other unimpaired phonological processing abilities such as oral pseudoword repetition
and working memory. These findings suggest that, in addition to poor spoken L2 proficiency, poor readers are characterized
more by a metalinguistic rather than a linguistic deficit in their native tongue. 相似文献
13.
Lexical acquisition ability for aurally taught words was studied in fourthgrade children. Reading ability, intelligence, and working memory were evaluated as predictor factors in vocabulary learning. Reading ability was found to predict facility at learning the novel phonological sequences, while intelligence was the only factor which accounted for performance level for the semantic content of the words. The working memory measure, digit span, failed to make a significant contribution to either the phonological or semantic outcome measures. Examination of two subgroups of skilled and less-skilled readers indicated that less-skilled readers had more difficulty acquiring the phonological information for new words. No between-group differences were found in long-term retention or in the ability to provide definitions for the newly learned words. The findings suggest that the vocabulary deficits of less-skilled readers stem, at least in part, from difficulty establishing accurate phonological representations for new words. 相似文献
14.
Escribano CL 《Journal of learning disabilities》2007,40(4):319-330
The double-deficit hypothesis acknowledges both phonological processing deficits and serial naming speed deficits as two dimensions associated with reading disabilities. The purpose of this study was to examine these two dimensions of reading as they were related to the reading skills of 29 Spanish average readers and poor readers (mean age 9 years 7 months) who met the criteria for either single phonological deficit (PD), double deficit (DD), or no deficit. DD children were the slowest readers and had the weakest orthography processing skills. No significant differences were found between PD and DD groups on word and pseudoword reading. Word reading and reading comprehension skills were average or above average in the three studied groups. As in previous studies in transparent orthographies, word reading was not a salient problem for Spanish poor readers, whereas for the DD group, reading speed and orthographic recognition skills were significantly affected. 相似文献
15.
This study examined the interaction between speech perception and sentential context among 13 poor readers and 49 good readers in grades one to three. Children's performance was examined on tasks assessing expressive and receptive vocabulary, reading skill, phonological awareness, pseudoword repetition, and phoneme identification. Good readers showed clearly defined categorical perception in the phoneme identification task for both sentence frames biased to the identification of the /b/ or /p/ phoneme. The /b/–/p/ category boundary for the BATH frame was at longer voice onset times (VOTs) than the boundary for PATH frame. Poor readers showed less sharply defined categorical perception with both sentence frames. Although poor readers did not show a shift in the /b/–/p/ category boundary, sentential context did affect the overall rate with which phonemes were identified as /b/ or /p/ at each VOT. These findings suggest that semantic information may operate as a compensatory mechanism for resolving ambiguities in speech perception. Furthermore, expressive vocabulary was more closely related than receptive vocabulary to individual differences in reading and phonological processing, providing support for the phonological distinctness hypothesis. 相似文献
16.
S. Hélène Deacon 《Journal of Research in Reading》2012,35(4):456-475
This study was designed to examine the independent contributions of phonological awareness, orthographic processing and morphological awareness on early word reading. English‐speaking children in Grades 1 and 3 completed measures of these three constructs, as well as standardised measures of real and pseudoword reading and of vocabulary. Each of the three reading‐related variables made an independent contribution to both real and pseudoword reading. Independent contributions of phonological awareness (7–17%) were consistently larger than those of orthographic processing (5–10%) or of morphological awareness (1–2%). In terms of differences between the grades, there was particular evidence of an increase in greater contribution of orthographic processing to pseudoword reading at Grade 3 than at Grade 1. These findings are discussed in light of current models of reading development. 相似文献
17.
Reading,syntactic, and working memory skills of bilingual Portuguese-English Canadian children 总被引：1，自引：0，他引：1
The purpose of the study was to examine the nature of language, memory, and reading skills of bilingual students and to determine the relationship between reading problems in English and reading problems in Portuguese. The study assessed the reading, language, and memory skills of 37 bilingual Portuguese-Canadian children, aged 9–12 years. English was their main instructional language and Portuguese was the language spoken at home. All children attended a Heritage Language Program at school where they were taught to read and write Portuguese. The children were administered word and pseudoword reading, language, and working memory tasks in English and Portuguese. The majority of the children (67%) showed at least average proficiency in both languages. The children who had low reading scores in English also had significantly lower scores on the Portuguese tasks. There was a significant relationship between the acquisition of word and pseudoword reading, working memory, and syntactic awareness skills in the two languages. The Portuguese-Canadian children who were normally achieving readers did not differ from a comparison group of monolingual English speaking normally achieving readers except that the bilingual children had significantly lower scores on the English syntactic awareness task. The bilingual reading disabled children had similar scores to the monolingual reading disabled children on word reading and working memory but lower scores on the syntactic awareness task. However, the bilingual reading disabled children had significantlyhigher scores than the monolingual English speaking reading disabled children on the English pseudoword reading test and the English spelling task, perhaps reflecting a positive transfer from the more regular grapheme phoneme conversion rules of Portuguese. In this case, bilingualism does not appear to have negative consequences for the development of reading skills. In both English and Portuguese, reading difficulties appear to be strongly related to deficits in phonological processing. 相似文献
18.
Franklin R. Manis Mark S. Seidenberg Lynne Stallings Marc Joanisse Caroline Bailey Laurie Freedman Suzanne Curtin Patricia Keating 《Annals of dyslexia》1999,49(1):105-134
There is a consensus that dyslexia is on a continuum with normal reading skill and that dyslexics fall at the low end of the
normal range in phonological skills. However, there is still substantial variability in phonological skill among dyslexic
children. Recent studies have focused on the high end of the continuum of phonological skills in dyslexics, identifying a
“surface” dyslexic, or “delayed” profile in which phonological skills are not out of line with other aspects of word recognition.
The present study extended this work to a longitudinal context, and explored differences among subgroups of dyslexics on a
battery of component reading skills. Third grade dyslexics (n=72) were classified into two subgroups, phonological dyslexics and delayed dyslexics, based on comparisons to younger normal
readers at the same reading level (RL group). The children were tested at two points (in third and fourth grade). The results
revealed that the classification of dyslexics produced reliable, stable, and valid groups. About 82 percent of the children
remained in the same subgroup category when retested a year later. Phonological dyslexics were lower in phoneme awareness
and expressive language. Delayed dyslexics tended to be slower at processing printed letters and words but not at rapid automatic
naming of letters, and relied more heavily on phonological recoding in reading for meaning than did phonological dyslexics.
A subset of the delayed dyslexics with the traditional “surface dyslexic” pattern (relatively high pseudoword and low exception
word reading) was also identified. The surface subgroup resembled the RL group on most measures and was not very stable over
one year. The results are discussed in light of current models of dyslexia and recent subgrouping schemes, including the Double-Deficit
Hypothesis. 相似文献
19.
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
20.
Jennifer Martin Pascale Colé Christel Leuwers Séverine Casalis Michel Zorman Liliane Sprenger-Charolles 《Annals of dyslexia》2010,60(2):238-264
This study investigated the reading and reading-related skills of 15 French-speaking adults with dyslexia, whose performance
was compared with that of chronological-age controls (CA) and reading-level controls (RL). Experiment 1 assessed the efficiency
of their phonological reading-related skills (phonemic awareness, phonological short-term memory, and rapid automatic naming
(RAN)) and experiment 2 assessed the efficiency of their lexical and sublexical (or phonological) reading procedures (reading
aloud of pseudowords and irregular words of different lengths). Experiment 1 revealed that adults with dyslexia exhibited
lower phonological reading-related skills than CAs only, and were better than RL controls on the RAN. In experiment 2, as
compared with RL controls, only a deficit in the sublexical reading procedure was observed. The results of the second experiment
replicated observations from English-language studies but not those of the first experiment. Several hypotheses are discussed
to account for these results, including one related to the transparency of orthographic systems. 相似文献