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1.
Franklin R. Manis Patricia A. Szeszulski Liana K. Holt Kathryn Graves 《Annals of dyslexia》1988,38(1):139-153
In this paper we apply a developmental model of reading to the question of dyslexic subtypes. Groups of normal readers (n=40)
and dyslexic children (n=50), matched on reading level and IQ, were given a comprehensive test battery measuring level of
development of visual, phonological, and orthographic skills. As a group, dyslexics deviated from normal readers of equivalent
reading achievement primarily in phonological skills (spelling-to-sound translation and phonemic analysis), although limited
differences in knowledge of word-specific spellings were also observed. Dyslexics were superior to the younger normal readers
in visual processing of print. Analysis of individual data by reference to the reading level control group revealed three
major subgroups: a group with a specific deficit in phonological processing of print (52 percent), a group with deficits in
processing both the phonological and orthographic features of printed words (24 percent), and a group with phonological deficits
in language (8 percent). The remainder of the sample (16 percent) had specific deficits in visual or orthographic processing
of print, in spelling, or did not differ from the control group. The data support the view that most developmental dyslexics
have a specific language disorder involving some aspect of phonological processing. However, small subgroups with very different
configurations of reading and nonreading difficulties may exist as well.
This research was supported by an NICHD grant to the first author (USPHS grant 1 R23 HD20231). 相似文献
2.
The simultaneous auditory processing skills of 17 dyslexic children and 17 skilled readers were measured using a dichotic listening task. Results showed that the dyslexic children exhibited difficulties reporting syllabic material when presented simultaneously. As a measure of simultaneous visual processing, visual attention span skills were assessed in the dyslexic children. We presented the dyslexic children with a phonological short-term memory task and a phonemic awareness task to quantify their phonological skills. Visual attention spans correlated positively with individual scores obtained on the dichotic listening task while phonological skills did not correlate with either dichotic scores or visual attention span measures. Moreover, all the dyslexic children with a dichotic listening deficit showed a simultaneous visual processing deficit, and a substantial number of dyslexic children exhibited phonological processing deficits whether or not they exhibited low dichotic listening scores. These findings suggest that processing simultaneous auditory stimuli may be impaired in dyslexic children regardless of phonological processing difficulties and be linked to similar problems in the visual modality. 相似文献
3.
Lexical priming was assessed in children with reading disability (RD) and in age-matched controls ( M = 11.5 years), in visual and auditory lexical decision tasks. In the visual task, children with RD were found to have deficits in semantic (SHIP–BOAT), phonological/graphemic (GOAT–BOAT), and combined (FLOAT–BOAT) priming. The same pattern of semantic priming deficits also occurred in auditory lexical decisions, suggesting that the semantic deficits are not confined to reading. Children with RD also showed less priming than reading-age matched controls, suggesting that their priming deficits are not simply due to lower reading level but are due to the reading disability in particular. These semantic deficits may contribute to both the word reading and the comprehension problems seen in children with RD. 相似文献
4.
In seven experiments, we investigated whether compensated and uncompensated adults with dyslexia show different patterns of deficits in magnocellular visual processing and in language processing tasks. In four visual tasks, we failed to find evidence of magnocellular deficits in either group. However, both groups of adults with dyslexia showed deficits in component language skills, and the degree of reading impairment predicted the nature and extent of these deficits. Uncompensated readers showed deficits in orthographic and especially phonological coding and awareness and were slower on rapid naming. Compensated readers showed word and nonword performance below controls but better than the uncompensated readers. The compensated group was not significantly less accurate than controls on phonological awareness, nor significantly worse overall on rapid naming. 相似文献
5.
Previous cross-language research has focused on L1 phonological processing and its relation to L2 reading. Less extensive
is the research on the effect that L1 orthographic processing skill has on L2 reading and spelling. This study was designed
to investigate how reading and spelling acquisition in English (L2) is influenced by phonological and orthographic processing
skills in Spanish (L1) in 89 Spanish-English bilingual children in grades 2 and 3. Comparable measures in English and Spanish
tapping phonological and orthographic processing were administered to the bilingual children. We found that cross-language
phonological and orthographic transfer occurs from Spanish to English. Specifically, the Spanish phoneme deletion task contributed
a significant amount of unique variance to English word reading and spelling, for both real words and pseudowords. The Spanish
homophone choice task predicted English reading, but not spelling. Taken together, these results suggest that there are shared
phonological and orthographic processes in bilingual reading; however, orthographic patterns may be language specific, thereby
not likely to transfer to spelling performance. 相似文献
6.
The purpose of the present study was twofold: (a) to examine the extent to which Chinese dyslexic children experience deficits in phonological and orthographic processing skills and (b) to examine if Chinese dyslexia is associated with deficits in Planning, Attention, Simultaneous, and Successive (PASS) processing. A total of 27 Grade 4 children with dyslexia (DYS), 27 Grade 4 chronological age (CA) controls, and 27 Grade 2 reading age (RA) controls were tested on measures of phonological awareness, rapid naming, phonological memory, PASS, reading accuracy, and reading fluency. The results indicated that the DYS group performed significantly poorer than the CA and RA groups on both measures of phonological awareness and on a measure of orthographic processing but comparably to the RA group on a measure of rapid naming and both measures of phonological memory. In regard to the PASS processing skills, the DYS group performed worse than the CA controls on Successive and Simultaneous processing but comparably to the RA group on all PASS processing skills. Implications of these findings for early identification and intervention of reading difficulties are discussed. 相似文献
7.
In two reading level design experiments, matched groups of normal and poor readers were compared with regard to their use of phonological and orthographic information. Experiment 1 used a semantic decision task similar to the task described in the study of Jarvella & Snodgrass (1974). Experiment 1 was aimed to assess the way normal and poor readers, matched on reading level, automatically process phonological and orthographic incongruencies when comparing the singular and plural of nouns. Experiment 2 investigated the automatized processing of uppercase-lowercase letter incongruencies in a same-different task using words and pseudowords. It assessed the role of letter feature cues involved in the initial identification process. Experiment 1 demonstrated that poor readers needed more time for evaluating phonologically incongruent word pairs. No independent effect of orthographic incongruency was found. Experiment 2 showed that, if compared with reading age matched normals, poor readers had more problems with evaluating uppercase-lowercase incongruencies. This orthographic processing problem was particularly prominent when pseudowords were presented. It is concluded that poor readers not only have phonological processing problems, but also have difficulties at the orthographic processing level. 相似文献
8.
Frank R. Vellutino William E. Tunmer James J. Jaccard RuSan Chen 《Scientific Studies of Reading》2013,17(1):3-32
The objectives of this series of 3 studies were (a) to evaluate whether French-speaking children mainly use phonological mediation in the first stage of reading acquisition in a silent-reading task and (b) to examine the role of phonological processing in the construction of the orthographic lexicon. Forty-eight French children were followed from kindergarten to the end of Grade 2. Their phonological skills were assessed using a semantic categorization task with homophone and visual foils (Study 1); their orthographic skills were assessed using a choice task involving a correct exemplar, a homophone, and a visual foil (Study 2). In the semantic categorization task, the differences between the visual and homophone foils increased with time, as the homophone foils were more and more likely to be chosen. In the orthographic choice task, performance improved with time, but errors were more likely to involve homophone foils. The results obtained by two subgroups of children who differed in their level of orthographic expertise at the end of Grade 2 (Study 3) indicated that, 1 year earlier (at the end of Grade I), the future "expert" spellers were more likely than the future "poor" spellers to use phonological processing in silent reading (semantic categorization task). Moreover, in Grade 1, future expert spellers' phonological skills in reading aloud and in spelling from dictation (pseudoword tasks) were better than those of future poor spellers, and future expert spellers also had better phonological awareness skills at the beginning of the last year of kindergarten. These results suggest that French-speaking children use phonological mediation in silent-reading tasks and that phonological processing contributes to the construction of the orthographic lexicon. 相似文献
9.
《Scientific Studies of Reading》2013,17(1):59-106
A theory-driven battery of 23 psychometric measures of reading, writing, and related language processes was administered to 102 probands (affected children in Grades 1 to 6 with documented reading problems, writing problems, or both) and both of their biological parents. Affected children and parents were compared on the structural relationships between related language processes (Verbal IQ [VIQ], orthographic, phonological, and rapid naming skills), component reading, (accuracy, rate, comprehension) and writing (handwriting, spelling, composition) skills. The orthographic factor had significant paths to all reading and writing skills, except reading comprehension, in both probands and adults. The phonological factor had significant paths to all reading and writing skills except reading rate and handwriting in probands, but in affected adults only if VIQ was removed. Rapid naming had significant paths only to reading rate in probands and adults. VIQ had significant paths to reading comprehension in probands and adults, and to reading accuracy, reading rate, spelling, and composition in affected adults, but not probands. These results are consistent with the claim of functional systems theory that the same language processes are orchestrated flexibly depending on task at hand. Results for across-age differences in the covariances among related language processes confirmed developmental predictions of connectionist theory. The number of language deficits (based on discrepancy from VIQ) uniquely predicted severity of reading and writing problems in children and spelling problems in adults. 相似文献
10.
The purpose of this study was to determine whether poor readers have more pronounced problems than average-reading peers reading
derived words the base forms of which undergo a phonological shift when a suffix is added (i.e., shift relations as in “natural”),
as compared to derived words whose forms are phonologically and orthographically transparent (i.e., stable relations, as in
“cultural”). Two computer-based word recognition tasks (Naming and Lexical Decision) were administered to children with reading
disability (RD), peers with average reading ability, and adults. Across tasks, there was an effect for transparency (i.e.,
better performance on stable than shift words) for both child groups and the adults. For the children, a significant interaction
was found between group and word type. Specifically, on the naming task, there was an advantage for the stable words, and
this was most noteworthy for the children with RD. On the lexical decision task, trade-offs of speed and accuracy were evident
for the child reader groups. Performances on the nonwords showed the poor readers to be comparable to the average readers
in distinguishing legal and illegal nonwords; further analyses suggested that poor readers carried out deeper processing of
derived words than their average reading peers. Additional study is needed to explore the relation of orthographic and phonological
processing on poor readers’ memory for and processing of derived words. 相似文献
11.
Hearing Matters More Than Seeing: A Cross-Modality Study of Statistical Learning and Reading Ability
Zhenghan Qi Yoel Sanchez Araujo Wendy C. Georgan John D. E. Gabrieli Joanne Arciuli 《Scientific Studies of Reading》2019,23(1):101-115
ABSTRACTThere is growing interest in the link between implicit statistical learning (SL) and reading ability. Although learning to read involves both auditory and visual modalities, it is not known whether reading skills might be more strongly associated with auditory SL or visual SL. Here we assessed SL across both modalities in 36 typically developing children and 36 healthy adults using the classic triplet-learning paradigm. Auditory SL was significantly associated with sentence reading fluency (Woodcock Johnson III Test of Achievement) in the combined sample of children and adults after controlling for age and nonverbal intelligence. In further analysis of the child data, auditory SL was significantly associated with nonword reading accuracy (Woodcock Reading Mastery Test), a relationship which appeared to be mediated by phonological processing abilities (Comprehensive Test of Phonological Processing). These findings suggest that auditory SL might contribute more strongly to certain aspects of reading development compared to visual SL. 相似文献
12.
This study examined the relation between the performance in a visual search task and reading ability in 92 third-grade Hong Kong Chinese children. The visual search task, which is considered a measure of visual-spatial attention, accounted for unique variance in Chinese character reading after controlling for age, nonverbal intelligence, vocabulary knowledge, morphological awareness, phonological awareness, orthographic knowledge, and rapid automatized naming. Visual search skill also explained unique variance in reading comprehension after further controlling for Chinese character reading. The findings of the present study underscore the importance of visual-spatial attention for Chinese reading, at both the character and text levels. 相似文献
13.
Recent research has shown that many people with dyslexia find it unusually difficult to detect flickering or moving visual
stimuli, consistent with impaired processing in the magnocellular visual stream. Nonetheless, it remains controversial to
suggest that reduced visual sensitivity of this kind might affect reading. We first show that the accuracy of letter position
encoding may depend on input from the magnocellular pathway. We then suggest that when children read, impaired magnocellular
function may degrade information about where letters are positioned with respect to each other, leading to reading errors
which contain sounds not represented in the printed word. We call these orthographically inconsistent nonsense errors letter
errors. In an unselected sample of primary school children, we show that the probability of children making “letter” errors
in a single word reading task was best explained by independent contributions from motion detection (magnocellular function)
and phonological awareness (assessed by a spoonerism task). This result held even when controlling for chronological age,
reading ability, and IQ. Together, these findings suggest that impaired magnocellular visual function, as well as phonological
deficits, may affect reading. 相似文献
14.
Nathalie N. Bélanger Shari R. Baum Rachel I. Mayberry 《Scientific Studies of Reading》2013,17(3):263-285
Deaf people often achieve low levels of reading skills. The hypothesis that the use of phonological codes is associated with good reading skills in deaf readers is not yet fully supported in the literature. We investigated skilled and less skilled adult deaf readers' use of orthographic and phonological codes in reading. Experiment 1 used a masked priming paradigm to investigate automatic use of these codes during visual word processing. Experiment 2 used a serial recall task to determine whether orthographic and phonological codes are used to maintain words in memory. Skilled hearing, skilled deaf, and less skilled deaf readers used orthographic codes during word recognition and recall, but only skilled hearing readers relied on phonological codes during these tasks. It is important to note that skilled and less skilled deaf readers performed similarly in both tasks, indicating that reading difficulties in deaf adults may not be linked to the activation of phonological codes during reading. 相似文献
15.
David L. Share Anthony F. Jorm Rod Maclean Russell Matthews 《Reading and writing》2002,15(1-2):151-178
The present investigation examined thehypothesis that early auditory temporalprocessing deficits cause later specificreading disability by impairing phonologicalprocessing (Farmer & Klein 1995; Tallal1980, 1984). Temporal processing ability atschool entry was examined using Tallal'sRepetition Test in a large unselected sample ofover 500 children followed over subsequentyears. Although our data confirmed the presenceof certain non-speech auditory processingdeficits in children later classified asspecific reading-disabled, many findings wereclearly at odds with a causal interpretation ofthis relationship. (1) Reading-disabled (RD)children were impaired at school entry on thesubtest with long interstimulus intervals(ISIs) but not the critical short-ISIsubtest. (2) RD children were not inferior toreading-age (RA) controls. (3) A subgroup of RDchildren with evidence of temporal deficitswere no less proficient on later phonologicalor reading measures than RD children with noevidence of early temporal impairment. (4)Although there was a reliable concurrentcorrelation between temporal deficits andphonological awareness at school entry(suggesting a possible common causeexplanation), early temporal deficits did notpredict later phonological impairment,pseudoword processing difficulties, or specificreading disability. On the other hand, earlytemporal deficits did predict later oralreceptive vocabulary and reading comprehensionweaknesses. These findings suggest thatauditory temporal deficits in dyslexics may beassociated with the same dysphasic-typesymptoms observed by Tallal and her colleaguesin specific language-impaired populations, butdo not cause the core phonological deficitsthat characterize dyslexic groups. 相似文献
16.
《Scientific Studies of Reading》2013,17(4):309-333
We examined the oral and written spelling performance on the Treiman-Bourassa Early Spelling Test (Treiman & Bourassa, 2000a) of 30 children with serious reading and spelling problems and 30 spelling-level-matched younger children who were progressing normally in learning to read and spell. The 2 groups' spellings were equivalent on a composite measure of phonological and orthographic sophistication, representation of the phonological skeleton of the items, and orthographic legality. The groups showed a similar advantage for words over nonwords on the phonological skeleton and orthographic legality measures. The children with dyslexia and the comparison children also showed an equivalent advantage for written over oral spelling on the composite and phonological skeleton measures. Further analyses revealed that children with dyslexia made many of the same linguistically based errors as typically developing children but also pointed to some subtle differences between the groups. Overall, the spelling performance of children with dyslexia appears to be quite similar to that of normally progressing younger children. 相似文献
17.
The current meta-analysis synthesized findings from profiling research on Chinese children with reading difficulties (RD). We reviewed a total of 81 studies published between 1964 and May 2015, representing a total of 9735 Chinese children. There are 982 effect sizes for the comparison between children with RD and age-matched typically developing (A-TD) children and 152 effect sizes for the comparison between children with RD and reading-level-matched typically developing (R-TD) children on multiple linguistic and cognitive skills. Results showed that compared to A-TD children, children with RD have severe deficits in morphological awareness, orthographic knowledge, phonological awareness, rapid naming, working memory, and visual skills and moderate deficits in short-term memory and motor skills. Compared to R-TD children, children with RD only have moderate deficits in rapid naming and mild deficits in orthographic knowledge. Moderation analyses for the comparison between RD and A-TD children revealed that children with more severe RD show more severe deficits in morphological awareness, phonological awareness, rapid naming, and visual skills. However, neither location (Mainland vs. Hong Kong) nor type of reading screening (character recognition vs. character recognition combined with reading comprehension) emerged as a moderator of the deficit profiles. These findings indicate that Chinese children with RD have deficits on a wide range of cognitive and linguistic skills. Deficits in rapid naming and orthographic knowledge may be potential causal factors for RD in Chinese based on existing evidence. Implications for the diagnosis and instructions of Chinese children with RD were discussed. 相似文献
18.
The question of which cognitive impairments are primarily associated with dyslexia has been a source of continuous debate. This study examined the cognitive profile of Hebrew-speaking compensated adult dyslexics and investigated whether their cognitive abilities accounted for a unique variance in their reading performance. Sixty-nine young adults with and without dyslexia were administered a battery of tests measuring their reading skills and a number of cognitive abilities. The dyslexics were found to exhibit a generally poor cognitive profile, including their attention, visual working memory, naming, visual perception and speed of processing abilities, with the exception of high executive functions skills. Furthermore, naming speed, visual working memory and attention were significantly associated with decoding and fluency measures and predicted group difference after controlling for phonological skills. The findings point to the contribution of cognitive factors to decoding rate and possibly to the ability of utilizing rapid orthographic processes, thus effecting dyslexics’ reading performance. 相似文献
19.
20.
The alphasyllabary of Kannada comprises more than 400 symbols called akshara; each symbol is visuo-spatially complex with a consistent representation at the dual levels of the syllable and the phoneme.
We investigated reading difficulties in Kannada among 8–12 year old children by conducting a between-groups followed by a
case series analysis. We compared the children with reading difficulties with same age competent readers and younger readers
who were similar in language level, matched on measures of vocabulary, syntactic processing, and morphological processing.
Reading difficulties were characterized by poor akshara knowledge. Concomitant impairments were in syllable and phoneme level
phonological skills, in rapid naming and in oral language skills. The case series analysis highlighted the variability of
profiles among poor readers with the most common impairments being in akshara knowledge and phonological processing. Sub-groups
of poor readers showed additional deficits in oral language, rapid naming, and visual processing skills. Together our findings
indicate that the core deficit associated with reading difficulty in the alphasyllabary of Kannada is in the phonological
domain. However, accompanying deficits in related skills, including visual processing, can further inhibit reading attainment.
The findings from this study support a multifactorial model of reading development. 相似文献