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1.
Individual differences in RAN and reading: a response timing analysis   总被引：1，自引：0，他引：1  
Thirty 8–11‐year‐old children were administered tests of rapid naming (RAN letters and digits) and reading‐related skills. Consistent with the hypothesis that RAN predicts reading because it assesses the ability to establish arbitrary mappings between visual symbols and verbal labels, RAN accounted for independent variance in exception word reading when phonological skills were controlled. Response timing analysis of different components of RAN digits and letters revealed that neither average item duration nor average pause duration were unique predictors of reading skill. However, the number of pauses on digit naming predicted unique variance in exception word reading. Moreover, better readers paused more strategically than poorer readers (e.g. more often at the ends of lines). We suggest that rapid automatised naming may in part reflect differences in strategic control that are a result of differences in reading practice and experience.  相似文献   

2.
Serial rapid automized naming (RAN) has been often found to correlate more strongly with reading than discrete RAN. This study aimed to demonstrate that the strength of the RAN–reading fluency relationship is dependent on the format of both RAN and the reading task if the reading task consists of sight words. Seventy-one first-grade, 74 second-grade, and 127 fourth-grade children were administered discrete and serial measures of RAN and word reading. The results showed that in second- and fourth-grade readers similar formats of RAN and reading were more strongly related than dissimilar formats. However, in first-grade readers serial RAN was more strongly related to reading than discrete RAN, irrespective of the format of the reading measure. Implications of these results are discussed for the interpretation of RAN and the tracking of the use of sight word reading.  相似文献   

3.
This study examined the extent to which mora deletion (phonological analysis), nonword repetition (phonological memory), rapid automatized naming (RAN), and visual search abilities predict reading in Japanese kindergartners and first graders. Analogous abilities have been identified as important predictors of reading skills in alphabetic languages like English. In contrast to English, which is based on grapheme-phoneme relationships, the primary components of Japanese orthography are two syllabaries—hiragana and katakana (collectively termed “kana”)—and a system of morphosyllabic symbols (kanji). Three RAN tasks (numbers, objects, syllabary symbols [hiragana]) were used with kindergartners, with an additional kanji RAN task included for first graders. Reading measures included accuracy and speed of passage reading for kindergartners and first graders, and reading comprehension for first graders. In kindergartners, hiragana RAN and number RAN were the only significant predictors of reading accuracy and speed. In first graders, kanji RAN and hiragana RAN predicted reading speed, whereas accuracy was predicted by mora deletion. Reading comprehension was predicted by kanji RAN, mora deletion, and nonword repetition. Although number RAN did not contribute unique variance to any reading measure, it correlated highly with kanji RAN. Implications of these findings for research and practice are discussed.  相似文献   

4.
The present study investigated whether orthographic depth can increase the bias towards multi-letter processing in two reading-related skills: visual attention span (VAS) and rapid automatized naming (RAN). VAS (i.e., the number of visual elements that can be processed at once in a multi-element array) was tested with a visual 1-back task and RAN was measured in a serial letter naming task that introduced a novel manipulation (some letter sequences formed frequent words). Spanish-Basque and French-Basque bilingual children were tested at early (30 children in 1st and 2nd grade), and more advanced (24 children in 3rd, 4th and 5th grade) stages of reading acquisition to investigate whether they would be differently biased towards multi-letter processing due to reading in two shallow (Spanish, Basque), or a deep and a shallow (French, Basque) orthography. The French-Basque bilinguals, who read in a deep orthography, were expected to rely on larger orthographic units in reading and thus to be more biased towards multi-letter processing in both tasks. This was expected to be reflected by: (a) a uniform distribution of attention across letter strings in the VAS task, and (b) a greater interference of the embedded words on letter-by-letter naming in RAN, leading to longer naming times. The expected group differences were observed in the more advanced readers, with French-Basque bilinguals showing a wider distribution of VAS across letter strings and longer naming times in RAN.  相似文献   

5.
This study examines the concurrent relationships between phoneme awareness, visual-verbal paired-associate learning, rapid automatized naming (RAN), and reading skills in 7- to 11-year-old children. Path analyses showed that visual-verbal paired-associate learning and RAN, but not phoneme awareness, were unique predictors of word recognition, whereas visual-verbal paired-associate learning, RAN, and phoneme awareness were predictors of nonword reading. These results suggest that visual-verbal paired-associate learning, RAN, and phoneme awareness tap related but far-from-identical processes and are important predictors of different aspects of reading skills in children.  相似文献   

6.
In this 2-year longitudinal study the developmental relationships among letter knowledge, phonological awareness, rapid naming, and task orientation were examined, and linguistic-motivational pathways of word reading acquisition were traced from kindergarten to Grade 1 by means of structural equation modeling. The participants were 100 Finnish-speaking nonreaders. Results showed that kindergarten (5–6 years) letter knowledge predicted subsequent preschool (6–7 years) phonological awareness and task orientation. RAN was a unique longitudinal and concurrent predictor of word recognition, suggesting that rapid naming provides a reliable prediction of prospective word reading ability at least in a transparent language. Controlling for phonological awareness and rapid naming, task orientation contributed uniquely to the prediction of word reading competence, suggesting that motivational and linguistic factors are both at work as children face the gradually growing demands of learning to read and write in Grade 1.  相似文献   

7.
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   

8.
Although it is established that reading fluency is more strongly related to serial naming of symbols than to naming of isolated items (serial superiority effect), the reason for the difference remains unclear. The purpose of this study was to examine the role of executive functions in explaining the serial superiority effect. One hundred seven Grade 6 Greek children were assessed on serial and discrete naming (digits, objects, and words), executive (inhibition, shifting, and updating) and non-executive tasks (simple choice reaction), and on a serial Rapid Alternating Stimuli task. Reading fluency correlated more strongly with serial naming than with discrete naming, consistent with the serial superiority effect. In hierarchical regression analyses, executive measures failed to account for variance shared between serial naming and reading fluency. In confirmatory factor analyses, including a discrete and a serial factor for the naming tasks, variance in the executive tasks not shared with simple choice reaction was not associated with the serial factor. Thus, the executive tasks failed to account for the serial superiority effect. The high correlation between the simple choice factor and the discrete naming factor suggests that method variance partially underlies the observed relationship between executive function tasks and word reading. We argue that the distinction between serial and discrete dimensions indicates that internally regulated cognitive control is crucial for the serial superiority in naming symbols and words.  相似文献   

9.
The purpose of this study was to examine different hypotheses in relation to RAN deficits in dyslexia. Thirty university students with dyslexia and 32 chronological-age controls were assessed on RAN Digits and Colors as well as on two versions of RAN Letters and Objects (one with five items repeated 16 times and one with 20 items repeated four times). In addition, participants were tested on discrete letter and object naming, phonological awareness, orthographic knowledge, and speed of processing, and the RAN Letters and Objects total times were partitioned into pause times and articulation times. Results showed first that the dyslexia group was slower than the control group on all RAN tasks and the differences remained significant after controlling for discrete naming time. Second, both groups were slower in the large item set condition (20 ×?4) than in the small set condition (5 ×?16). Third, the dyslexia group was slower than the control group in both the pause and the articulation times. Although none of the processing skills was sufficient on its own to eliminate group differences in RAN Letters components, phonological awareness, and orthographic processing were sufficient on their own to eliminate group differences in the RAN Objects pause time. Taken together, our findings suggest that the deficits in RAN are not due to impaired anchoring, but rather due to subtle impairments in lexical access (specific to alphanumeric RAN), serial processing, and articulation.  相似文献   

10.
The relation of rapid automatised naming (RAN) to word recognition may depend on the phonological regularity of the orthography. This study examined differential contributions of RAN to reading and writing in Korean alphabetic Hangul, logographic Hanja (Chinese) and English as a second language among 73 fifth graders in Korea across 1 year. RAN was differentially associated between reading and writing in Hangul and English. After statistically controlling for age, gender, morphological awareness, vocabulary and phonological awareness, RAN was uniquely predictive of Hangul word writing but not Hangul word recognition, and it uniquely accounted for English word recognition but not English word writing. Meanwhile, RAN explained both reading and writing in Hanja. Findings were discussed in terms of their orthography characteristics and different levels of proficiency.  相似文献   

11.
First-grade students (N = 221) were individually tested on a battery of cognitive and achievement measures of verbal fluency, visual attention, phonological awareness, orthographic recognition, rapid automatized naming (RAN) of letters and objects, and reading. All tests were subjected to postacquisition scoring, and all RAN measures were segregated into measures of articulation time, pause time, and consistency of the pause time. Structural equation modeling demonstrated that word reading was directly and significantly predicted by RAN letter naming and general RAN cognitive processing time of objects. Moreover, RAN letter reading constructs were significantly and directly predicted by the latent variables of phonological awareness, orthographic recognition, and general RAN object articulation and cognitive processing times. RAN letter naming constructs were also significantly and indirectly predicted by visual attention. The reading model was found to be consistent with a total mediation of the relation of phonological awareness and reading through RAN letter naming and supported the validity of the RAN letter naming subtest as a basic letter reading test. These findings supported the double-deficit hypothesis for letter reading. We suggest that phonological memory is a basic factor underlying general RAN cognitive processing time of objects and domain-specific information associated with phonemes and their graphic representations.  相似文献   

12.
Word list reading fluency is theoretically expected to depend on single word reading speed. Yet the correlation between the two diminishes with increasing fluency, while fluency remains strongly correlated to serial digit naming. We hypothesized that multi-element sequence processing is an important component of fluency. We used confirmatory factor analyses with serial and discrete naming tasks with matched items, including digits, dice, objects, number words, and words, performed by about 100 Greek children in each of Grades 1, 3, and 5. Separable serial and discrete factors emerged across grades, consistent with distinct skill dimensions. Loadings were greater for serial than discrete, suggesting that discrete processing does not fully determine serial processing. Average serial performance differed more than discrete between grades, consistent with improvement beyond single-item speed. Serial word reading aligned increasingly with the serial factor at higher grades. Thus, word reading fluency is gradually dominated by skill in simultaneously processing multiple successive items through different stages (termed “cascading”), beyond automatization of individual words.  相似文献   

13.
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   

14.
Although research has established that performance on a rapid automatized naming (RAN) task is related to reading, the nature of this relationship is unclear. Bowers (2001) proposed that processes underlying performance on the RAN task and orthographic knowledge make independent and additive contributions to reading performance. We examined the benefits of training orthographic pattern recognition and speeded letter recognition for children in Grades 1 and 2 with slow naming speed. Children first received training in either orthographic pattern recognition or speeded letter recognition, and then switched to the other type of training. Results indicated that speeded letter recognition can improve through training, but only when preceded by training in orthographic pattern recognition. Orthographic pattern recognition training improved the accuracy and speed of reading training words, whether training occurred alone or following letter training. Letter training prior to the orthographic training provided no additional benefit. Together, these results argue for the importance of orthographic training for children with slow naming speed.  相似文献   

15.
This study investigated (1) the role of syllable awareness in word reading and spelling after accounting for the effects of print-related skills (letter-name and letter-sound knowledge, and rapid serial naming), and (2) unique contributions of orthographic, semantic (vocabulary and morphological awareness), phonological, and print-related predictors to word reading and spelling for 4- and 5-year old Korean-speaking children (N = 168). Syllable awareness was found to be positively related to word reading and spelling after accounting for print-related skills and phoneme awareness. Letter-name knowledge and orthographic awareness were uniquely related to word reading and spelling after accounting for other language and literacy-related skills. In addition, phoneme awareness was uniquely related to spelling whereas rapid serial naming was uniquely related to word reading, after accounting for other language and literacy-related skills. Semantic knowledge such as vocabulary and morphological awareness were not related to either word reading or spelling after accounting for other language and literacy-related skills. Word reading and spelling remained uniquely and positively related to each other. These findings are discussed in light of crosslinguistic variation in early literacy acquisition.  相似文献   

16.
The current study examined several alternative explanations of the association between serial naming speed within fourth‐grade children by determining the extent to which the association between word reading and naming speed for letters and numbers is mediated by global processing speed, alphanumeric symbol processing efficiency and phonological processing ability. Children were given multiple measures of key constructs, i.e. word‐level reading, serial naming of both alphanumeric and non‐alphanumeric items, phonological processing ability, articulation rate and global processing speed. The robust association between alphanumeric naming speed and reading within fourth‐grade children was largely mediated by phonological processing ability. Markedly different patterns of results were observed for naming speed for letters and digits and naming speed for colours and pictures in children of this age. Relative to the latter, alphanumeric naming speed better assesses an underlying phonological processing ability that is common to word‐reading ability. We argue that item identification processes contribute little to individual differences in alphanumeric naming speed within relatively proficient readers and that the extent to which alphanumeric naming speed primarily reflects phonological processing is likely to vary with the level of overlearning of letters and numbers and their names.  相似文献   

17.
We examined the developmental relations of phonological awareness (PA) and rapid automatized naming (RAN) with reading in a cross-sectional study with 874 Spanish children from Grades 2 to 6. Our main prediction was that the RAN–reading relationship would decrease due to a gradual change in reading strategy, from serial decoding to sight word reading. Therefore, in contrast to most previous studies, we used discrete reading tasks. Serial RAN tasks for objects, colors, digits, and letters were included. First, we examined whether the RAN tasks loaded on the same constructs across time. An alphanumeric and a nonalphanumeric factor were identified, which were invariant over time. In subsequent multigroup structural equation models we found that the PA–reading relationship was low but slightly increased in the higher grades. As predicted, the RAN–reading relationship decreased for words, whereas the relationship remained stable for pseudowords.  相似文献   

18.
Additional analyses of a previously published study addressed three questions about growth in word reading during early reading intervention: (1) How well do Verbal IQ, reading-related language abilities (phonological, rapid naming, and orthographic), and attention ratings predict reading growth? (2) How well do language deficits predict reading growth? and (3) How well does Verbal IQ-word reading discrepancy predict reading growth? Univariate analyses showed that Verbal IQ, phonological skills, orthographic skills, rapid automatized naming (RAN), and attention ratings predicted the response to early intervention, but multivariate analyses based on a combination of predictors for real-word reading and pseudoword reading showed that Verbal IQ was not the best unique predictor. Students with double or triple deficits in language skills (RAN, phonological, and orthographic processing) responded more slowly to early intervention than students without language deficits. Verbal IQ-word reading discrepancy did not predict the response to early intervention in reading. Overall results supported the use of reading-related language and attention measures rather than IQ-achievement discrepancy in identifying candidates for early reading intervention.  相似文献   

19.
Phonological awareness (PA) and rapid automatised naming (RAN) skills in relation to reading acquisition were examined using two languages, one with a deep orthography (English) and the other with a shallow orthography (Korean). Participants were 50 Korean American children who spoke English as a dominant language (DL) and were learning to read Korean as a sequential language (SL). Parallel measures in English and Korean assessed PA, RAN and reading skills. The results showed the similarities and differences between the DL and SL acquisition patterns for PA and RAN. While PA skills of the DL were a dominant predictor in SL reading achievement, RAN became important for the children with the higher level of SL reading performance. This cross‐sectional study indicates that proficiencies of PA and RAN in the DL are the pathway to reading success in an SL. This suggests that a universal thread exists in learning dual languages, despite dissimilar orthography, phonology and writing systems.  相似文献   

20.
This study explores 1) the components of rapid automatized naming (RAN) by first analyzing the factorial associations between RAN tasks and various nonword decoding and processing speed measures and secondly, by exploring which of these process latent variables are uniquely associated with literacy in 65 below-average readers and spellers. In preliminary factor analyses, all speeded naming tasks loaded together (Factor 1: Rapid Naming); All tasks involving speeded alphanumeric naming loaded together (Factor 2: Alphanumeric Naming); Alphanumeric RAN tasks also loaded with nonsense word decoding (Factor 3: Decoding). The Alphanumeric Naming factor predicted 2% of unique variance in Literacy. Our results thus provide two new findings: 1) only very modest variation in Literacy is explained by aspects of RAN not primarily associated with either generic naming speed or decoding ability; 2) variation in other verbal forced choice response speed and response inhibition tasks are linked to reading through common variance in speeded naming tasks also shared by alphanumeric RAN tasks. Implications of these findings for theories of reading and individual differences are explored.  相似文献   

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