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1.
The development of working memory in normally achieving and subtypes of learning disabled children 总被引：13，自引：1，他引：13
Working memory has been proposed as an important component of reading and arithmetic skills. The development of working memory was studied in normally achieving and subtypes of learning disabled children. The performance of reading disabled (RD), arithmetic disabled (ARITHD), and attentional deficit disordered (ADD) children, age 7-13, was compared to normal achievers (NA) on 2 working memory tasks, 1 involving sentences and the other involving counting. There was a significant growth of working memory as a function of age. In addition, the RD children had significantly lower scores on both tasks. The ARITHD children had significantly lower scores only on the Working Memory--Counting task, and the ADD group had scores similar to the normally achieving children except at the youngest age level in the Working Memory--Sentences task. Thus, a reading disability appears to involve a generalized deficit in working memory. Children with an arithmetic disability do not have a generalized language deficit but have a specific working memory deficit in relation to processing numerical information. As children with ADD did not have deficits in these tasks, working memory may not have significant attentional components. An important component of the development of reading and computational arithmetic skills appears to be the growth of working memory for language and numerical information. 相似文献
2.
Metalinguistic and literacy abilities were studied in twenty-seven nonvocal cerebral palsied school children. The participants of the study were presented four tests of phonological awareness: rhyme recognition, sound identification, phoneme synthesis and word length analysis. Their verbal comprehension was measured using a semantic and a syntactic task. Two tests of nonverbal memory: the visual sequential task from ITPA and Corsi blocks and the Digit Span task from WISC, were also included. These measures were related to their reading and spelling ability. The nonvocal children performed on a lower level on the reading and spelling tasks than did the children of two comparison groups, one matched for mental age and one for mental and chronological age. There were no differences in phonological awareness or in verbal memory. The disabled children performed worse on the verbal comprehension task than the children in the comparison groups. Although the reading and spelling results were low in the nonvocal group there were children showing some literacy skills. A within-group analysis performed in the nonvocal group showed that the reading children performed better on all memory tests, and on the sound identification and the word length analysis tasks than the nonreading ones. They also showed better results on verbal comprehension, the semantic task and used more symbols in their communication. Synthetic speech was more often used in reading and spelling education in the reading subgroup than in the nonreading. Metalinguistic abilities and possibility of acoustic rehearsal are discussed as important factors in reading and spelling acquisition in the nonvocal population. 相似文献
3.
Previous research has demonstrated close relationships between working memory and children's scholastic attainment. The aim of the present study was to explore a method of improving working memory, using memory strategy training. Two hundred and fifty‐four children aged five to eight years were tested on measures of the phonological loop, visuo‐spatial sketchpad and central executive components of the multiple component model of working memory. Subgroups of children also completed tasks of following instructions and mental arithmetic in the classroom, and standardised tests of reading, arithmetic and mathematics. Half of the children then used Memory Booster, a computer game that teaches memory strategies, over a period of six to eight weeks. All the children were then retested on the memory and ability measures. The standardised tests were also administered five months later. The results revealed that working memory strategy training resulted in significant improvements in tasks assessing the phonological loop and central executive components of working memory, and tasks assessing following instructions and mental arithmetic in the classroom. However, no improvements were observed on standardised tests of reading, arithmetic or mathematics, either immediately following training or five months later. The results are discussed in terms of implications for educational practice. 相似文献
4.
《Scientific Studies of Reading》2013,17(3):241-256
The majority of children and adults with reading disabilities exhibit pronounced difficulties on naming-speed measures such as tests of rapid automatized naming (RAN). RAN tasks require speeded naming of serially presented stimuli and share key characteristics with reading, but different versions of the RAN task vary in their sensitivity: The RAN letters task successfully predicts reading ability, whereas the RAN objects task does not reliably predict reading after kindergarten. In this study we used functional magnetic resonance imaging to evaluate the neural substrates that may underlie performance on these tasks. In two scans during the same test session, adult, average readers covertly rapidly named objects or letters or passively viewed a fixation matrix of plus signs. For both rapid naming tasks compared with fixation, activation was found in neural areas associated with eye movement control and attention as well as in a network of structures previously implicated in reading tasks. This reading network included inferior frontal cortex, temporo-parietal areas, and the ventral visual stream. Whereas the inferior frontal areas of the network were similarly activated for both letters and objects, activation in the posterior areas varied by task. The letters task caused greater activation in the angular gyrus, superior parietal lobule, and medial extrastriate areas, whereas object naming only preferentially activated an area of the fusiform gyrus. These results confirm that RAN tasks recruit a network of neural structures also involved in more complex reading tasks and suggest that the RAN letters task specifically pinpoints key components of this network. 相似文献
5.
Lee Swanson H 《Journal of learning disabilities》2011,44(4):358-371
This longitudinal study assessed (a) whether performance changes in working memory (WM) as a function of dynamic testing were related to growth in reading comprehension and (b) whether WM performance among subgroups of children with reading disabilities (RD; children with RD only, children with both reading and arithmetic deficits, and low verbal IQ readers) varied as a function of dynamic testing. A battery of memory and reading measures was administered to 78 children (11.6 years) across three testing waves spaced 1 year apart. WM tasks were presented under initial and dynamic testing conditions (referred to as gain and maintenance testing). The important results were that (a) WM performance as a function of maintenance testing was a significant moderator of growth in reading comprehension and (b) WM performance of children with RD was statistically comparable within subgroups of RD but inferior to that of skilled readers across all testing conditions. The results support the notion that children's WM performance under dynamic testing conditions was related to the rate of growth in reading comprehension but unrelated to subgroup differences in reading. 相似文献
6.
Zhang Zhijun 《浙江大学学报(A卷英文版)》2000,1(3):337-341
This study explored the possibility of developing a technique combining multiple measures of mental workload. Dual task technique
was applied. Twenty subjects were asked to perform computer-simulated monitoring tasks with three different levels of difficulties.
A reaction time performance with digital stimuli was added as subsidiary task. The four indexes, accurate reaction time of
primary task, variation rate of accurate reaction time of subsidiary task, weighted subjective workload rating and variation
rate of heart rate variance, were used and tested. The correlation matrix of the four indexes was examined with principal
component analysis technique, and two mathematical models of comprehensive mental workload indexes (CMWIA, CMWIB) were then
advanced. It is verified that these two comprehensive indexes were far more sensitive for monitoring mental workload as compared
with any one of the preceding four indexes. It was concluded that it was useful to construct some comprehensive mental workload
indexes for practical industrial purposes.
The project (395174) supported by Zhejiang Provincial Natural Science Foundation of China 相似文献
7.
ＩＮＴＲＯＤＵＣＴＩＯＮＴｈｅｐｒｏｂｌｅｍｏｆｍｅｎｔａｌｏｖｅｒｌｏａｄｂｅｃａｍｅｉｎ ｃｒｅａｓｉｎｇｌｙｓｅｒｉｏｕｓｗｉｔｈｄｅｖｅｌｏｐｍｅｎｔｏｆｉｎｄｕｓｔｒｉａｌａｕｔｏｍａｔｉｏｎ .Ｉｎｍａｎｙｉｎｄｕｓｔｒｉａｌｓｔａｔｉｏｎｓ,ｉｔｗａｓｂｅｌｉｅｖｅｄ ,ｏｐｅｒａｔｏｒｓｗｅｒｅｆｒｅｑｕｅｎｔｌｙｕｎｄｅｒｔｈｅｐｒｅｓｓｕｒｅｏｆｈｉｇｈｍｏｎｉｔｏｒｉｎｇｍｅｎｔａｌｗｏｒｋｌｏａｄｂｅ ｃａｕｓｅｍａｎｙｐａｎｅｌｓａｎｄｏｔｈｅｒｉｎｓｔｒｕｍｅｎｔｓｍｕｓｔ… 相似文献
8.
The purpose of the study was to compare the performance of severe and mild learning disabled children to normal children on a problem-solving task. The three types of children were assessed on the Matching Familiar Figures task, which provides a measure of impulsivity during problem-solving tasks. Results indicated that on the MFF, LD children, as a group, were more impulsive than normal children, and severe LD were more impulsive than mild LD children. Impulsivity scores were correlated with reading achievement, indicating a relationship between problem-solving strategy and academic performance. Educational implications are discussed regarding the usefulness of the reflection-impulsivity dimension in the area of learning disabilities and the applicability of the MFF as a diagnostic and evaluative measure. 相似文献
9.
Jaana Viljaranta Marja-Kristiina Lerkkanen Anna-Maija Poikkeus Kaisa Aunola Jari-Erik Nurmi 《Learning and Instruction》2009,19(4):335-344
To examine the cross-lagged relationships between children's task motivation in mathematics and literacy, and their related performance, 139 children aged 5–6 years were examined twice during their kindergarten year. The results showed that only math-related task motivation and arithmetic performance showed cross-lagged relationship: the higher the math-related task motivation children reported in the beginning of the kindergarten year the higher the level of their arithmetic performance at the end of the kindergarten year. Moreover, the higher the level of children's arithmetic performance the more the interest in mathematics children reported later on. Literacy-related task motivation and literacy performance did not show a similar pattern of relations. 相似文献
10.
Monica Cuskelly Airong Zhang Alan Hayes 《International Journal of Disability, Development & Education》2003,50(3):239-251
The performance of 25 children with Down syndrome on delay of gratification tasks was compared with that of a mental age-matched group of typically developing children. Delay tasks included both other- and self-imposed tasks. Children with Down syndrome were significantly less able to delay gratification than the comparison group on two of the three tasks. Receptive language was associated with delay on the self-imposed task for the typically developing group but not for children with Down syndrome. It is hypothesised that there may be a lag in the development of self-regulation that is greater than the lag between chronological and mental age for children with Down syndrome, with expressive language playing a role in this lag. The practice of using mental age as the method for matching groups of children with Down syndrome with typically developing children is called into question by the results of this study. 相似文献
11.
Nils S⊘vik Per Frostrad Mette HEGGBERGET 《Scandinavian Journal of Educational Research》2013,57(4):371-398
The study was concerned with the relation between reading comprehension and task‐specific strategies used in arithmetical word problems. Two hypotheses were formulated in the study. H1 stated that subjects good at arithmetic as well as reading (Group 1) would emphasize deductive strategies to a greater extent than subjects in the remaining groups. H2 considered IQ to be a stronger predictor for subjects’ strategies in arithmetical word tasks than reading comprehension. Four groups of 9‐year‐old children with different competencies in arithmetic and reading were sampled for the investigation. An intelligence test (WISC) and three other tests, Mathematical tests 1‐3, were constructed and administered to the 20 subjects. The tests were used to examine subjects’ strategies in completed task solutions. The findings indicated that great similarities existed between Groups 1 (good at both skills) and 2 (good at arithmetic and poor at reading) as to strategies used in addition and subtraction problems. Whereas subjects in groups 1 and 2 mainly used deductive strategies, those in Groups 3 (good at reading and poor at arithmetic) and 4 (poor at both skills) rather used procedural strategies in solving the problems. Concerning strategies applied in multiplication and division tasks a more diverse pattern of strategies was revealed in all of the four groups, but the majority of subjects emphasized deductive strategies. Multiple regression analyses of the data indicated strong linear relationships between the predictors and the criteria used in the analyses. However, IQ was the only significant single predictor found in the regression analyses. H1 had to be suspended, but H2 could not be rejected. 相似文献
12.
A sample of 60 children in Grade 3 was followed over one year. In the first year, an extensive battery of assessments was
used including aspects of reading, arithmetic, and working memory. Teachers rated the children on 7-point scales on various
motivational dimensions summarized to a total score tentatively called task orientation. In the follow-up assessment one year
later, the testing and teacher ratings were repeated. The cross-sectional correlations between reading, arithmetic, and task
orientation were all high (about +.70). The high correlation between reading and arithmetic decreased significantly when task
orientation was partialed out, and it was further reduced when working memory as assessed by backward digit span was added
to the controlling factors. Also, teacher ratings of cognitive ability and language development accounted for some of the
common variance between reading and arithmetic. The correlation between task orientation and school achievement cannot be
causally interpreted in cross-sectional designs. Some support for a “causal” hypothesis, however, was obtained in crosslagged
correlation analyses indicating that task orientation in Grade 3 may have a causal impact on the level of performance in reading,
and in arithmetic in Grade 4. Most likely, however, there is also a reciprocal relationship. 相似文献
13.
Deaf children's use of phonological coding: evidence from reading, spelling, and working memory 总被引：3，自引：0，他引：3
Two groups of deaf children, aged 8 and 14 years, were presented with a number of tasks designed to assess their reliance on phonological coding. Their performance was compared with that of hearing children of the same chronological age (CA) and reading age (RA). Performance on the first task, short-term recall of pictures, showed that the deaf children's spans were comparable to those of RA controls but lower than CA controls. For the older deaf children, short-term memory span predicted reading ability. There was no clear evidence that the deaf children were using phonological coding in short-term memory when recall of dissimilar items was compared with recall of items with similarly sounding names. In the second task, which assessed orthographic awareness, performance of the deaf children was similar to that of RA controls although scores predicted reading level for the deaf children but not the hearing. The final task was a picture spelling test in which there were marked differences between the deaf and hearing children, most notably in the number of spelling refusals (which was higher for the deaf children in the older group than their RA controls) and the percentage of phonetic errors (which was considerably lower for both groups of deaf children than for any of the hearing controls). Overall these results provide support for the view that deaf children place little reliance on phonological coding. 相似文献
14.
The aim of the two studies presented in this article was to examine working memory performance in Dutch children with various subtypes of learning disabilities. The performance of children with reading disabilities (RD) was compared to that of children with arithmetic disabilities (AD), children with both reading and arithmetic disabilities (RAD), and chronological age-matched controls (CA). Measures covered the phonological loop, the visuospatial sketchpad, and the central executive. In both studies, the children with RD showed no working memory deficits whatsoever. Children with AD showed a single impairment on the task tapping working memory for dynamic visual information. Children with RAD performed lower only on the digit span backward task. The failure to replicate the expected working memory deficits in children with reading-related disabilities is discussed. 相似文献
15.
Screen inferiority in performance and metacognitive processes has been repeatedly found with text learning. Common explanations for screen inferiority relate to technological and physiological disadvantages associated with extensive reading on screen. However, recent studies point to lesser recruitment of mental effort on screen than on paper. Learning tasks involving a heavy reading burden confound technological and physiological media differences with potential media effects on recruitment of mental effort. The present study focused on media effects on effort recruitment. We examined whether screen inferiority remains even with a brief task that nevertheless requires effort recruitment. In two experiments, participants faced three short math problems that require systematic processing to solve correctly. We examined media effect on solving these problems, and the potential of disturbed perceptual fluency (i.e., disfluent versus fluent fonts) to induce effort investment. Overall, there were no performance differences between the media. However, when collecting confidence ratings, disfluency improved performance on screen and hindered it on paper. Only on paper confidence ratings were sensitive to performance differences associated with fluency, and resolution was better with the disfluent font than with the fluent font. Correspondingly, another sample reported on their preference of media for solving the problems. They expressed a clear reluctance to working on screen despite the task being brief. This preference is suggestive of reliable meta-metacognitive judgments reflecting the general lower quality of metacognitive processes on screen. The findings call for considering medium and presentation format effects on metacognitive processing when designing computerized environments, even for brief tasks. 相似文献
16.
Bouton S Bertoncini J Serniclaes W Colé P 《Journal of deaf studies and deaf education》2011,16(4):458-473
We assessed the reading and reading-related skills (phonemic awareness and phonological short-term memory) of deaf children fitted with cochlear implants (CI), either exposed to cued speech early (before 2 years old) (CS+) or never (CS-). Their performance was compared to that of 2 hearing control groups, 1 matched for reading level (RL), and 1 matched for chronological age (CA). Phonemic awareness and phonological short-term memory were assessed respectively through a phonemic similarity judgment task and through a word span task measuring phonological similarity effects. To assess the use of sublexical and lexical reading procedures, children read pseudowords and irregular words aloud. Results showed that cued speech improved performance on both the phonemic awareness and the reading tasks but not on the phonological short-term memory task. In phonemic awareness and reading, CS+ children obtained accuracy and rapidity scores similar to CA controls, whereas CS- children obtained lower scores than hearing controls. Nevertheless, in phonological short-term memory task, the phonological similarity effect of both CI groups was similar. Overall, these results support the use of cued speech to improve phonemic awareness and reading skills in CI children. 相似文献
17.
Individual and developmental differences in reading monitoring: When and how do children evaluate their comprehension? 总被引：1，自引：0，他引：1
Elsa Eme Minna Puustinen Béatrice Coutelet 《European Journal of Psychology of Education - EJPE》2006,21(1):91-115
This paper examines evaluation in reading. Evaluation refers to the processes by which readers monitor their ongoing text
comprehension to assess performance and task difficulties. Monitoring is assumed to explain a large proportion of individual
differences in text comprehension, in that individuals need to be aware of their objectives and difficulties in order to adjust
their strategies to match task requirements. The participants were French children in grades 3 and 5. Study 1 examined their
evaluation-related knowledge (i.e., knowledge about reading objectives, sources of difficulties, comprehension awareness).
Study 2 examined the children’s actual evaluation behavior during a comprehension task. The results showed that few children
provided elaborate verbalizable knowledge about reading tasks, goals and corresponding skills, and that in most cases the
children were highly confident in their responses to text comprehension questions, regardless of the correctness of their
answer. The contribution of metalinguistic awareness to literacy acquisition as well as the implications of this type of study
for educational practice are discussed. 相似文献
18.
Morphological awareness in developmental dyslexia 总被引：5，自引：0，他引：5
This study examines morphological awareness in developmental dyslexia. While the poor phonological awareness of dyslexic children
has been related to their difficulty in handling the alphabetical principle, less is known about their morphological awareness,
which also plays an important part in reading development. The aim of this study was to analyze in more detail the implications
of the phonological impairments of dyslexics in dealing with larger units of language such as morphemes. First, the performance
of dyslexic children in a series of morphological tasks was compared with the performance of children matched on reading-level
and chronological age. In all the tasks, the dyslexic group performed below the chronological age control group, suggesting
that morphological awareness cannot be developed entirely independently of reading experience and/or phonological skills.
Comparisons with the reading-age control group indicated that, while the dyslexic children were poorer in the morphemic segmentation
tasks, they performed normally for their reading level in the sentence completion tasks. Furthermore, they produced more derived
words in the production task. This suggests that phonological impairments prevent the explicit segmentation of affixes while
allowing the development of productive morphological knowledge. A second study compared dyslexic subgroups defined by their
degree of phonological impairment. Our results suggest that dyslexics develop a certain type of morphological knowledge, which
they use as a compensatory reading strategy. 相似文献
19.
《International Journal of Educational Research》2005,43(4-5):250-271
This 3-year longitudinal study examined how motivational tendencies, that is, task orientation and social dependence orientation, as well as cognitive-linguistic prerequisites of reading and math skills (i.e., phonological awareness, rapid naming, oral language comprehension skills, number sequence and basic arithmetic skills) measured in kindergarten (5–6 years), in preschool (6–7 years), and in grade 1, predict decoding, reading comprehension and arithmetic achievement in grade 2. Moreover, the motivational-developmental profiles of children with prospective learning difficulties were compared to the profiles of averagely achieving children. The participants were 139 Finnish-speaking children. Results from regression analyses showed that rapid naming was a unique longitudinal predictor of later decoding skills. Oral comprehension skills accounted for a unique variance in reading comprehension at every time point examined. Motivational orientations started to make unique contributions to subsequent decoding accuracy, reading comprehension and arithmetic from preschool onwards, over and above the effects of prior linguistic and math skills. High task orientation was beneficial for beginning reading, whereas high social dependence orientation was detrimental for reading comprehension and arithmetic. Students who fell behind of others both in reading comprehension and arithmetic experienced the most unfavourable development of motivation already during the first term in grade 1. Implications for instructional practices are discussed. 相似文献
20.
Derek R. Becker Sybil Carrère Chelsea Siler Stephanie Jones Bonnie Bowie Cheryl Cooke 《Mind, Brain, and Education》2012,6(1):10-18
In this study we examined high frequency heart rate variability (HF‐HRV, a parasympathetic index) both at rest and during challenge, to assess if variations in cardiovascular activity measured during a Stroop task could be used to predict reading achievement in typically developing children. Reading achievement was examined using the Peabody Individual Achievement Test–Revised. Results showed that greater HF‐HRV suppression during both the Stroop word and Stroop word–color conflict tasks was associated with better reading achievement. Higher basal levels of HF‐HRV did not predict better reading scores. These results are among the first to show a link between HF‐HRV and reading achievement in a normative school age population, and offer new insight into the association between cognitive activity and autonomic regulation of the heart. 相似文献