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Reading and Writing - Studies investigating relations between morphological awareness and literacy in German, a language with a rather transparent but asymmetric orthography, are sparse. Little is... 相似文献
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Claudia Steinbrink Karin Zimmer Thomas Lachmann Martin Dirichs Thomas Kammer 《Child development》2014,85(4):1711-1726
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
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Katarina Groth Thomas Lachmann Axel Riecker Irene Muthmann Claudia Steinbrink 《Reading and writing》2011,24(3):285-303
The present study investigated auditory temporal processing in developmental dyslexia by using a vowel length discrimination
task. Both temporal and phonological processing were studied in a single experiment. Seven German vowel pairs differing in
vowel height were used. The vowels of each pair differed only with respect to vowel length (e.g., /a/ vs. /a:/). In German,
vowel length is characterized by temporal and spectral information. Three types of differences between long versus short vowels
were varied: In the phonological condition, pairs of natural vowels were used, differing in their temporal as well as in their
spectral content. In two temporal conditions, in contrast, a natural vowel was always combined with a manipulated one to keep
spectral content of long and short vowels identical. Thus, the only distinguishing feature between the two vowels was temporal
in nature. Vowels were embedded into monosyllabic pseudo-words and presented successively in a speeded same–different task. Twenty dyslexics and twenty age-matched controls participated in the experiment. In both groups, discrimination accuracy
decreased with increasing vowel height in the two temporal conditions. This result is consistent with former findings on the
relevance of temporal information for vowel length identification in German and extends this topic to cover discrimination
demands. In the phonological condition, groups did not differ in discrimination accuracy. In both temporal conditions, however,
dyslexics performed worse than controls. These results suggest that developmental dyslexia is associated with impairments
in processing basic acoustic parameters of the speech signal, in particular, with a deficit in temporal processing. 相似文献
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