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1.
Kees P. van den Bos 《Annals of dyslexia》1984,34(1):179-193
Hypothesized cognitive strengths and weaknesses of three dyslexic subgroups (Boder and Jarrico 1982) were examined in two
reading related experiments. The first experiment tested the prediction that auditorily presented letter sets should be processed
better by dyseidetic than by dysphonetic readers. The prediction was not confirmed. The results did not show any modality
of presentation-specific recall differences between the three dyslexic subgroups. Overall, dyslexic children’s scores were
significantly lower than those of age-matched control groups. The second experiment tested predictions of differential performance
of dyseidetic and dysphonetic readers in a task in which the name identity of letters in pairs had to be indicated. Predicted
patterns were not confirmed. Compared to the control groups all three dyslexic subgroups (whose means did not differ significantly)
made significantly more errors in the condition in which it was essential to activate phonetic representations of the letters.
The experimental results of this study suggest a greater similarity in the nature of letter processing problems in dyslexic
children than is assumed in Boder and Jarrico’s (1982) subtyping test.
This research was supported by grant 634301 from the Department of Special Education, State University of Groningen, and a
travel grant from the Netherlands Organization for the Advancement of Pure Research (Z.W.O.).
Based on a presentation at the 32nd Annual Conference of The Orton Dyslexia Society, Baltimore, Maryland, November 1982. 相似文献
2.
Cathy F. Telzrow Evelyn Century Barbara Whitaker Carol Redmond Barbara Zimmerman 《Psychology in the schools》1983,20(4):427-432
The Boder Test may represent a viable screening instrument for the identification of dyslexia and dyslexic subtypes. Proportions of the 30 LD children studied identified by Boder's classification system as dysphonetic (63.3%), dyseidetic (6.7%), and mixed dysphonetic-dyseidetic (13.3%) were similar to those reported in earlier studies. Neuropsychological characteristics associated with the Boder categories were consistent with the literature: Significantly fewer dysphonetic readers were represented in the V > and Spatial<Sequential IQ groups, and left-handedness and left-hand tapping preference were overrepresented in the mixed dyslexic category. Black children who had been identified as learning disabled on the basis of other tests were categorized as normal readers by the Boder, suggesting its possible use as a nonbiased measure of reading. 相似文献
3.
The present study reexamined the relevance of auditory and visual cross-modal matching to reading ability, an issue first addressed in a seminal study by Birch and Belmont (1964). By presenting all patterns to be matched as temporal sequences of tones and lights, including intramodal as well as cross-modal conditions, and covarying memory, three problems with the Birch and Belmont design were corrected. Results showed that poor readers had difficulty in perceiving temporal patterns generally: They did worse than good readers not only on cross-modal conditions but also on intramodal ones. These results were replicated in two tasks. Nonetheless, hierarchical regressions provided some indication that cross-modal abilities themselves are relevant to reading. For one of the two tasks, cross-modal performance contributed to the prediction of reading ability over and above intramodal performance. Poor readers also showed slower response times--a factor that contributed marginally to the prediction of reading independent of temporal processing. 相似文献
4.
Electrophysiological correlates of dyslexic subtypes. 总被引：1，自引：0，他引：1
The construct validity of Boder's typology of dyslexia was investigated using quantified EEG. Thirty-nine children, ranging in age from 7-0 to 10-11, were recorded during a contextual reading task and at rest. During reading, children with dyslexia were expected to show increased theta and beta amplitude compared to nondisabled readers. These differences were expected in regions of presumed strength for each subtype as a sign of overengagement in task. Children with phonological deficits (dysphonetic dyslexia) were expected to adopt visuospatial processing strategies (right occipital-parietal activation), those with orthographic deficits (dyseidetic dyslexia) to emphasize phonetic strategies (left temporal-parietal activation). Results supported beta frequency differences in anticipated regions by subtype during the reading task. However, the direction of difference hypothesis was not supported. Decreased amplitudes in both groups with dyslexia compared to normally achieving readers suggest reconceptualization of the theoretical base for the Boder subtyping system. 相似文献
5.
Five 8- to 10-year-old children with dysphonetic and dyseidetic dyslexia were given instruction in reading comprehension using a story grammar strategy in which story instruction was differentially designed to match the simultaneous or sequential mental processing strengths of each dyslexia subtype. A multiple baseline, single subject experimental design and statistical analyses indicated that the experimental treatments yielded statistically and clinically significant improvements in the proportion of qualitatively important story elements recalled by the subjects, when compared to baseline traditional remedial instruction. The results suggested that students with dyslexia can increase their reading comprehension with training in metacognitive strategies. The question of whether the results were attributable to the subtype-matched methods per se or to strategy training in general, as well as a number of methodological issues, is being explored in subsequent research. 相似文献
6.
P T Ackerman R A Dykman C Holloway N P Paal M Y Gocio 《Journal of learning disabilities》1991,24(9):542-549
Sixty children with dyslexia (41 boys, 19 girls; ages 9 to 13) were enrolled in a 10-week summer tutoring program that emphasized word-building skills. They were randomly and blindly assigned to receive either placebo or piracetam, a purportedly memory-enhancing drug that has been reported to facilitate reading skill acquisition. The children were subtyped as "dysphonetic" or "phonetic" on the basis of scores from tests of phonological sensitivity and phoneme-grapheme correspondence skills. Of the 53 children who completed the program, 37 were classified as dysphonetic and 16 as phonetic. The phonetic group improved significantly more in word-recognition ability than the dysphonetic group. Overall, the children on medication did not improve more than the nonmedicated ones in any aspect of reading. The phonetic subgroup on piracetam gained more in word recognition than any subgroup but did not improve significantly more than the phonetic subgroup on placebo. Results are discussed in relation to findings from previous studies of piracetam in children with dyslexia. 相似文献
7.
The present study was designed to investigate the influence of syntactic complexity on sentence comprehension in Hebrew. Participants were 40 native Hebrew-speaking 5th grade dyslexic and normally reading children aged 10–11 years. Childrens syntactic abilities were tested by three experimental measures: syntactic judgment, a sentence-picture matching task, and a sentence correction task. Each task consisted of sentences composed of five syntactic constructions varying in the level of syntactic complexity (active, passive, conjoined, object-subject relative, and subject-object relative). The length of sentences and the number of propositions in the sentences were controlled. In addition, a wide range of the childrens reading and general abilities (e.g., reading comprehension, phonological awareness, and working memory) was examined. The results indicated that dyslexic readers were less accurate and slower than good readers in all reading tasks and in the tasks on sentence comprehension. The findings suggest that the factor of syntactic complexity seems to be a relatively independent aspect of sentence comprehension. This aspect of sentence comprehension is probably not affected in dyslexic readers. Rather, processing deficit related to phonological and memory impairments of dyslexic children and their ability to process syntactic information is responsible for the difficulties in sentence comprehension. 相似文献
8.
Helen Mulholland 《Journal of Research in Reading》1985,8(2):139-140
The research reported in this thesis was designed to investigate the nature of reading comprehension failure with a view to improving remedial reading programmes for those children who, although resembling normal readers in other respects, enter secondary education with an inadequate level of reading ability. By the use of cloze tests, in which the reader is required to restore words deleted from a text, comparisons were made between failing readers at age twelve, normal readers of age twelve and normal readers of age nine who had reached the same level of reading comprehension as the failing twelve-year-olds. The three groups’ responses were classified by a system based on a view of the reading process as an interaction between the reader and the text. The effects of specific aspects of text on the three groups of readers were investigated. It was found that there were significant differences between the responses offered by the failing readers at age twelve and normal readers at age nine. Since the level of reading ability of the two groups was the same, this suggests that reading failure involves qualitative differences from normal reading development. The types of difficulty experienced by failing readers, as reflected in their cloze responses, include difficulties in visual scanning, in reconstruction of syntactic structures and in vocabulary. These components did not affect all failing readers equally. Failing readers appear to have greater difficulty than normal in relating their responses to the general theme of the text and tend to treat it as a series of isolated fragments. They make less use of the context following a deleted word than normal readers. Failing readers at age twelve appear to have greater difficulty than normal readers at age nine in recognizing which segments of a text contain important information. The whole population of a secondary school, 643 subjects, was tested and it was found that failing readers at age fifteen produced the same pattern of responses as those failing at age twelve. The only improvement appearing in their reading was in the processing of complete sentences. There were indications that remedial programmes designed on the diagnostic basis provided by the research results produced an increase in reading age in six months of a similar order to that produced by previous remedial programmes in a year. The increase was approximately twenty-four months on average for a group of failing readers whose mean reading age on entry was eight years six months. The programme caused them to alter their response patterns to resemble those of normal readers at age twelve. 相似文献
9.
Children who are poor readers have difficulty naming pictured objects. Their naming difficulty could be a result of inadequate representations of the phonology of words, inadequate processing of those representations, or both. In this study, third-grade good and poor readers were tested on object naming, and, in cases of naming failure, forced-choice recognition tasks were used to probe their knowledge of the phonology of the object names. The two reading groups showed no differences in their ability to select the initial phonemes or rhymes of object names they had not produced spontaneously. Moreover, initial phoneme prompts were helpful for both reading groups. The children differed, however, in their ability to produce words after being given rhyme information. The results indicated that, except in the ability to manipulate explicitly phonological information, the poor readers; performance was qualitatively similar to that of the good readers. It is suggested that training in phonological analysis may help poor readers overcome the deficiencies in establishing and processing phonological representations that lead to their quantitative deficit in object naming. 相似文献
10.
Children who are poor readers have difficulty naming pictured objects. Previous research has shown that while poor readers have the same amount of tacit phonological knowledge about words they cannot retrieve as good readers, they cannot use this initial phoneme and rhyme information to produce these words. In this study, thirdgrade good and poor readers participated in a training session to explicitly teach them how to manipulate the phonological structure of words as a means of facilitating naming ability. Both groups benefited from training, even though the good readers performed consistently better than poor readers. It is suggested that with more extensive training, poor readers may learn to use their tacit phonological knowledge of words they have difficulty retrieving spontaneously, by generating and using their own phonemic and rhyme cues independently. 相似文献
11.
Alan M. Hultquist 《Annals of dyslexia》1997,47(1):89-114
This study investigated the orthographic processing abilities of reading disabled adolescents (RD), normal readers matched
on chronological age (CA), and younger normal readers matched on reading age (RA). The mean age for the three groups were
14 years 2 months, 13 years 8 months, and 10 years respectively. Four experimental measures were adapted from prior research.
These include homophone choice accuracy (after Stanovich, West, and Cunningham 1991), orthographic choice accuracy and speed
(after Olson et al. 1989), and rapid serial naming of letters (after Denckla and Rudel 1976). In addition, a new test of orthographic
processing is introduced (from Hultquist 1996) which assesses the speed and accuracy of reading high frequency words when
presented within strings of consonants (embedded) and when presented alone (nonembedded).
The RD group displayed greater difficulty than the CA-matched normal readers on five of the six measures, and performed worse
than the RA-matched younger readers on four of the six tasks. Error analyses revealed that the RD group had specific difficulty
processing consonant blends when reading embedded words. 相似文献
12.
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
13.
Explaining speech production deficits in poor readers 总被引：2，自引：0，他引：2
The purpose of the present study was to further examine speech production abilities of young poor readers. Fourteen poor readers and 14 age-matched nondisabled subjects were taught to produce four novel, multisyllabic nonsense words. A recognition task was part of the training procedure. Retention of the words was also probed. The poor readers took significantly longer than the nondisabled children to produce three of the four words. The recognition data indicated that encoding limitations, rather than speech production limitations, were primarily responsible for the longer acquisition times. Speech production deficiencies seemed to account for only a small portion of the difficulty the poor readers experienced learning the novel words. The data are consistent with previous research that has documented encoding limitations in poor readers. 相似文献
14.
Less skilled readers’ comprehension often suffers because they have an impoverished representation of text in long-term memory; this, in turn, increases the difficulty of gaining access to backgrounded information necessary for maintaining coherence. The results of four experiments demonstrated that providing less skilled readers with additional explicit interconnections enhanced their text representations in memory and increased their ability to maintain coherence. Experiments 1a and 1b confirmed the finding that less skilled readers were not disrupted by global inconsistencies. Experiments 2a and 2b showed that text manipulations designed to enhance the accessibility of global information led to less skilled readers being disrupted by global inconsistencies. 相似文献
15.
《Scientific Studies of Reading》2013,17(1):17-42
This research was aimed at contributing to the current understanding of the underlying factors of naming speed and the causes of naming speed deficits. Forty regular readers and 40 dyslexic university students participated in the study. Electrophysiological (Event-Related Potentials [ERPs]) and behavioral measures were employed. Behavioral baseline tasks assessed general ability, reading skills, reading-related cognitive abilities, and standard Rapid Automatized Naming (RAN) and Rapid Alternating Stimulus tests. ERP tasks included letter and object naming tasks adapted for electrophysiological research presentation. The dyslexics were significantly slower and less accurate than the controls on most of the baseline measures. On all the naming tasks, the peak ERP latencies were elicited later, reaction times were longer, and the P300 latency width was wider among the dyslexics as compared to the regular readers. On the choice reaction time naming tasks, accuracy for both groups was almost perfect. When naming presentation time was controlled by the experiment, the dyslexics were significantly less accurate than the controls. Our data indicated that effective naming speed was related to an earlier P200 latency peak among regular readers and to an earlier P300 latency peak and narrower area component activation in the dyslexic group. The results from this study suggest that effective RAN speed among regular readers might be a result of efficient processing of RAN information at the input stage of stimulis perception and evaluation as well as of updating and processing the information in short-term memory among dyslexics. 相似文献
16.
Peter Bale 《Journal of Research in Reading》1981,4(2):123-135
An investigation into the relationship between reading difficulty and maladjustment indicated that a significantly greater number of backward readers than normal readers were antisocial. The higher incidence of maladjustment was found in those backward readers with perceptual motor problems. The backward readers were also significantly more restless and uncontrolled in their behaviour. The relationship of restless hyperactive behaviour with perceptual motor difficulties is associated with an inability by the backward reader to ignore distracting stimuli and focus upon relevant perceptual information. As the restless hyperactive behaviour was present from an early age but the antisocial behaviour did not develop until he or she was experiencing difficulty with reading, it is probable that the backward reader's poor concentration and impulsive behaviour contribute both to the reading difficulty and to the development of antisocial tendencies. 相似文献
17.
王文华 《鞍山师范学院学报》2015,(4):90-94
大数据背景下,汹涌而来的网络信息考验着高校图书馆的使用价值,影响和改变了高校图书馆的读者资源,逼迫高校图书馆信息资源重新布局。因此大数据将成为高校图书馆的核心竞争力,进而要求高校图书馆员提升使用计算机和网络的能力、数据分析的能力、与用户沟通和个性化服务的能力、高质量专题科研信息服务的能力、培训读者高科技检索和咨询的能力。 相似文献
18.
Frances Martin Elizabeth Claydon Adam Morton Sonia Binns Chris Pratt 《Journal of Research in Reading》2003,26(2):191-204
This study examined the use of orthographic and phonological deletion strategies by children in the 6–16‐year age range. Children from Grades 1 to 10 (n=191) were presented either visually or orally isolated words and were asked to pronounce these words using either an orthographic (spelling) strategy following mental deletion of one letter, or a phonological (sounding) strategy following mental deletion of one sound. All children performed additional reading and spelling tasks in which they read and spelt all the words and derivatives from the deletion tasks. Analysis of variance revealed that younger readers were more accurate when using phonological strategies than when using orthographic strategies, whereas older readers showed superior orthographic and phonological processing abilities. Generally the results supported the suggestion that phonological and orthographic processing ability increase with age, and that the increase in these abilities with age is not solely dependent on reading and spelling ability. 相似文献
19.
Yu-Cin Jian 《Reading and writing》2017,30(7):1447-1472
This study investigated the cognitive processes and reader characteristics of sixth graders who had good and poor performance when reading scientific text with diagrams. We first measured the reading ability and reading self-efficacy of sixth-grade participants, and then recorded their eye movements while they were reading an illustrated scientific text and scored their answers to content-related questions. Finally, the participants evaluated the difficulty of the article, the attractiveness of the content and diagram, and their learning performance. The participants were then classified into groups based on how many correct responses they gave to questions related to reading. The results showed that readers with good performance had better character recognition ability and reading self-efficacy, were more attracted to the diagrams, and had higher self-evaluated learning levels than the readers with poor performance did. Eye-movement data indicated that readers with good performance spent significantly more reading time on the whole article, the text section, and the diagram section than the readers with poor performance did. Interestingly, readers with good performance had significantly longer mean fixation duration on the diagrams than readers with poor performance did; further, readers with good performance made more saccades between the text and the diagrams. Additionally, sequential analysis of eye movements showed that readers with good performance preferred to observe the diagram rather than the text after reading the title, but this tendency was not present in readers with poor performance. In sum, using eye-tracking technology and several reading tests and questionnaires, we found that various cognitive aspects (reading strategy, diagram utilization) and affective aspects (reading self-efficacy, article likeness, diagram attraction, and self-evaluation of learning) affected sixth graders’ reading performance in this study. 相似文献