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Studies of basic (nonspeech) auditory processing in adults thought to have developmental dyslexia have yielded a variety of data. Yet there has been little consensus regarding the explanatory value of auditory processing in accounting for reading difficulties. Recently, however, a number of studies of basic auditory processing in children with developmental dyslexia have suggested that a reduced ability to discriminate the rate of change in amplitude envelope onsets (rise time) may be linked to phonological processing difficulties and thereby to reading difficulties. Here, we select a range of different rise-time tasks used with children, and give them to adults with developmental dyslexia, along with 2 other auditory tasks (intensity discrimination and temporal order judgment). Deficits in both rise-time perception and temporal order judgment were found to predict literacy attainment in adults with developmental dyslexia, but the data were suggestive of different causal pathways.  相似文献   

3.
ABSTRACT

There 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   

4.
The utility of Chinese tone processing skill in detecting children with English reading difficulties was examined through differences in a Chinese tone experimental task between a group of native English‐speaking children with reading disabilities (RD) and a comparison group of children with normal reading development (NRD). General auditory processing, English phonemic processing and English reading skills were also tested. We found differences between groups in Chinese tone processing skill, as well as general auditory processing and English phonemic skills. The RD group was significantly poorer than NRD on tasks of Chinese tone, phonemic and frequency modulated (FM) tone processing. Another finding was a different pattern of relationship between RD and NRD groups in Chinese tone, phonemic and FM tone processing as predictors of reading skills. For children with RD, FM tone processing was a significant predictor of pseudoword reading; for NRD, phonemic and Chinese tone processing skills predicted real word reading. These findings contribute to improved understanding of the roles of general auditory processing and phonological processing skills in RD, with implications for assessment and intervention with children who have English reading difficulties.  相似文献   

5.
通过对比优、劣汉语阅读者在视觉、听觉时间加工任务中的表现,探讨不同水平的正常阅读者中存在的时间加工能力差异。选择阅读能力正常的小学三年级学生,筛选优秀阅读者18人,拙劣阅读者16人,施以瑞文智力测试及一系列阅读能力测试。采用时间顺序判断的经典范式,分别考察了两组被试的视觉、听觉时间加工能力。数据分析结果表明:优秀汉语阅读者的视、听觉时间加工能力,均显著地高于拙劣汉语阅读者,但当智力因素被控制后,组间差异的显著性消失。  相似文献   

6.
In a large sample (N = 439) of literacy impaired and unimpaired elementary school children the predictions of the temporal processing theory of dyslexia were tested while controlling for (sub)clininal attentional deficits. Visual and Auditory Temporal Order Judgement were administered as well as three subtests of a standardized attention test. The correlation between visual and auditory TOJ was only moderate, challenging the assumption of a general, cross-modal temporal processing deficit. Regression analyses revealed attention as a significant predictor of children's TOJ performance. Once attentional differences were accounted for, temporal processing made a significant but small contribution (3% of variance explained) to reading (but not spelling), but also to arithmetic achievement, indicating that the prediction is not specific to literacy skills. Phonology and Rapid Automatized Naming explained considerable variance even when introduced after TOJ, contradicting the assumption that the verbal deficits in dyslexia result from temporal processing problems. Multiple case studies of 40 children with serious deficits in temporal processing revealed no consistent group pattern. Problems in temporal processing do not necessarily lead to literacy impairment but might be a marker of minor deviances in brain development.  相似文献   

7.
One hundred five participants from a random sample of elementary and middle school children completed measures of reading achievement and cognitive abilities presumed, based on a synthesis of current dyslexia research, to underlie reading. Factor analyses of these cognitive variables (including auditory processing, phonological awareness, short-term auditory memory, visual memory, rapid automatized naming, and visual processing speed) produced three empirically and theoretically derived factors (auditory processing, visual processing/speed, and memory), each of which contributed to the prediction of reading and spelling skills. Factor scores from the three factors combined predicted 85% of the variance associated with letter/sight word naming, 70% of the variance associated with reading comprehension, 73% for spelling, and 61% for phonetic decoding. The auditory processing factor was the strongest predictor, accounting for 27% to 43% of the variance across the different achievement areas. The results provide practitioner and researcher with theoretical and empirical support for the inclusion of measures of the three factors, in addition to specific measures of reading achievement, in a standardized assessment of dyslexia. Guidelines for a thorough, research-based assessment are provided.  相似文献   

8.
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   

9.
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   

10.
The development of phonological awareness (PA) before school age was modeled in association with the development of vocabulary and letter knowledge, home literacy environment (HLE), children's reading interest, and beginning reading skill in children with and without familial risk of dyslexia. A total of 186 children were followed from birth to the age of 6.5 years. Of these children, about half had a familial background of reading difficulties (the at-risk group), and the other half came from families without such background (the control group). The data from several measures and assessment time points were analyzed within an SEM framework, and a latent analysis of growth curves was employed. Vocabulary and letter knowledge were found to predict PA development, and vice versa, PA predicted them. The effect of HLE on PA was mediated by vocabulary skills, and of the HLE variables, the only variable predicting vocabulary development was shared reading. In spite of the difference in level, favoring the controls, the pattern of effects of vocabulary and letter knowledge on PA development was highly similar in children with and without familial risk for dyslexia. However, in the at-risk group, the HLE variables and children's reading interest had stronger associations with each other and with skill development than in the control group, and vocabulary predicted parental reports on children's reading interest in the at-risk group only.  相似文献   

11.
ABSTRACT

Although phonological awareness (PA) and rapid automatized naming (RAN) are confirmed as early predictors of reading in a large number of orthographies, it is as yet unclear whether the predictive patterns are universal or language specific. This was examined in a longitudinal study across Grades 1 and 2 with 1,120 children acquiring one of five alphabetic orthographies with different degrees of orthographic complexity (English, French, German, Dutch, and Greek). Path analyses revealed that a universal model could not be confirmed. When we specified the best-fitting model separately for each language, RAN was a consistent predictor of reading fluency in all orthographies, whereas the association between PA and reading was complex and mostly interactive. We conclude that RAN taps into a language-universal cognitive mechanism that is involved in reading alphabetic orthographies (independent of complexity), whereas the PA–reading relationship depends on many factors like task characteristics, developmental status, and orthographic complexity.  相似文献   

12.
Adults and children with reading impairment (N = 67) were administered a rapid auditory task, a rapid visual task, and a battery of orthographic and phonological tasks. Our results support a differential development model of reading disability that argues that deficits in rapid auditory ability in children are primarily associated with problems in phonological processing, whereas deficits in rapid visual ability in children are primarily associated with problems in orthographic processing (Farmer & Klein, 1995). In contrast to the children, the adults showed a strong relation between rapid auditory ability and both orthographic and phonological processing. These results suggest that continued deficits in auditory ability may have a pervasive and negative impact on word processing in general. In addition, adults did not exhibit a relation between rapid visual ability and orthographic-processing problems. Orthographic-processing deficits may result from a reading delay condition that can be overcome with increased reading exposure (Harm & Seidenberg, 1999).  相似文献   

13.
The attentional blink refers to a reduction in accuracy that occurs when identifying the second of two targets presented within approximately 500 msec of each other. This research explored individual differences in the attentional blink in a sample of 86 children (aged 8–10) with normally developing reading skills. The attentional blink was examined in relation to general reading performance as well as specific orthographic and phonological reading subprocesses. No associations were evident between attentional blink duration and reading ability. However significant correlations did exist between each of the three reading measures and mean second target correct given first target correct (T2|T1) performance across all lags, with less skilled readers exhibiting inferior performance regardless of the temporal lag between first and second targets. Performance on a rapid naming task mediated some of the relationship between mean T2|T1 performance and reading, yet the association remained significant when this factor was accounted for.  相似文献   

14.
A few studies have shown more central auditory processing deficits in children with attention-deficit/hyperactivity disorder (ADHD) than in nondisabled children. Because these studies failed to screen participants with ADHD for learning disabilities (LD), it is not clear whether these deficits are correlates of ADHD or LD or both. In the present study, the central auditory processing ability of children with ADHD, ADHD with LD, and no disabilities was examined. Results indicated lower central auditory processing ability, and significant correlations between reading and ADHD symptoms and reading and central auditory processing ability in the ADHD with LD group compared with the other two groups. These findings suggest that central auditory processing deficits are more likely to be associated with LD than ADHD.  相似文献   

15.
In a longitudinal study, auditory and visual temporal order thresholds (TOTs) were investigated in primary school children (N = 236; mean age at first data point = 6;7) at the beginning of Grade 1 and the end of Grade 2 to test whether rapid temporal processing abilities predict reading and spelling at the end of Grades 1 and 2. Auditory and visual TOTs differed but showed comparable developmental trajectories over 20 months. Visual TOTs were not predictive of literacy measures; auditory TOTs in Grade 1 were the best predictor. Interestingly, they were related to spelling in Grade 2 while auditory TOTs in Grade 2 were not, suggesting that rapid auditory processing abilities have a causal influence on literacy development.  相似文献   

16.
An investigation was conducted into the visual and auditory temporal processing profiles of two groups of 4‐ to 6‐year‐old children: pre‐alphabetic children, who showed no alphabetic ability (failing to read any non‐words in a test), and those who demonstrated some alphabetic ability. This alphabetic group showed higher scores in reading and spelling attainment than the pre‐alphabetic group. They were also faster than the pre‐alphabetic group in reacting to the onset and offset of auditory and visual stimuli. However, when age was used as a covariate, only reaction times (RTs) to the offsets of visual stimuli were found to be faster in the alphabetic than the pre‐alphabetic group. This suggests that responses to the offset of visual stimuli are becoming more rapid during the same developmental period when alphabetic ability is beginning to be acquired. Within the alphabetic group, after accounting for age, visual and auditory onset RTs were strongly correlated, whereas within the pre‐alphabetic group there were high correlations between visual and auditory offset RTs. It is therefore suggested that a strong association between RTs to visual and auditory onsets may be beneficial during early alphabetic acquisition, when phoneme–grapheme associations are established. Multiple regression analyses showed visual offset RT as the only variable to account for a significant amount of variance in spelling attainment after age was taken into account, which may relate to Frith's (1985) contention that spelling is important in driving early alphabetic ability.  相似文献   

17.
This study examined language-specific links among auditory processing, linguistic prosody awareness, and Mandarin (L1) and English (L2) word reading in 61 Mandarin-speaking, English-learning children. Three auditory discrimination abilities were measured: pitch contour, pitch interval, and rise time (rate of intensity change at tone onset). Linguistic prosody awareness was measured three ways: Mandarin tone perception, English stress perception, and English stress production. A Chinese character recognition task was the Mandarin L1 reading metric. English L2 word reading was assessed by English real word reading and nonword decoding tasks. The importance of the auditory processing measures to reading was different in the two languages. Pitch contour discrimination predicted Mandarin L1 word reading and rise time discrimination predicted English L2 word reading, after controlling for age and nonverbal IQ. For the prosodic and phonological measures, Mandarin tone perception, but not rhyme awareness, predicted Chinese character recognition after controlling for age and nonverbal IQ. In contrast, English rhyme awareness predicted more unique variance in English real word reading and nonword decoding than did English stress perception and production. Linguistic prosody awareness appears to play a more important role in L1 word reading than phonological awareness; while the reverse seems true for English L2 word reading in Mandarin-speaking children. Taken together, auditory processing, language-specific linguistic prosody awareness, and phonological awareness play different roles in L1/L2 reading, reflecting different prosodic and segmental structures between Mandarin and English.  相似文献   

18.
We studied the relationship between rapid serial naming (RSN) and orthographic processing in Russian, an asymmetrically transparent orthography. Ninety-six students (M age = 13.73) completed tests of word and pseudoword reading fluency, spelling, orthographic choice, phonological choice, phoneme awareness (PA), and RSN. PA was a better predictor of orthographic skills and pseudoword reading accuracy than RSN, which accounted for more variance in word and pseudoword reading fluency. Controlling for pseudoword reading fluency washed out RSN’s contribution to word reading fluency. These results extend previous findings questioning the role of RSN as an index of orthographic processing skills and support the idea that RSN taps into automaticity/efficiency of processing print-sound mappings.  相似文献   

19.
In the present study, we investigated the relationship between general auditory processing, Chinese tone processing, English phonemic processing and English reading skill in a group of Chinese-English bilingual children with a tonal L1 and Korean-English counterparts with a non-tonal L1. We found that general auditory processing contributed to variance in English word reading skill for Chinese children after controlling for Chinese tone and English phoneme deletion skill. English phonemic processing, on the other hand, explained a significant amount of unique variance in English reading for Korean children after controlling for general auditory and Chinese tone skill. These findings suggest that Chinese children relied more on general auditory processing in reading English, whereas Korean children relied more on phonemic skill in reading English. These findings are discussed in terms of the impact of cross-language differences in bilingual reading acquisition.  相似文献   

20.
While the importance of phonological sensitivity for understanding reading acquisition and impairment across orthographies is well documented, what underlies deficits in phonological sensitivity is not well understood. Some researchers have argued that speech perception underlies variability in phonological representations. Others have investigated the role of more general auditory sensitivity for reading development and reading difficulties, arguing that poor phonological representations may actually be due to broad underlying auditory deficits, which are not restricted to speech stimuli. We argue that these hypotheses are not necessarily mutually exclusive. In this review, we demonstrate that auditory sensitivity and speech perception can be integrated into a single developmental model, in which auditory sensitivity may have an indirect impact on reading; this impact is mediated by speech perception. In the model, we distinguish general auditory sensitivity as falling into at least two general categories: rhythmic and temporal. Correspondingly, speech perception itself can be distinguished as suprasegmental and segmental. Theoretically, the proposed model integrates a broad range of studies on general auditory and speech perception to suggest a developmental trajectory for reading acquisition that can be explored from before birth. Practically, the proposed model points to different ways of understanding and diagnosing reading difficulties and distinguishing reading difficulties across languages and orthographies.  相似文献   

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