Rapid naming in Persian children with dyslexia and its relation to reading level
Background and Aim: Several studies have demonstrated deficits in rapid naming in dyslexic readers; however the extent of deficit is different in various orthographies. This study was intended to survey the naming speed in Persian children with dyslexia.
Methods: Rapid automatized naming (RAN) task of 19 children with dyslexia were compared with 31 nondyslexic children. Participants were selected from the students of the second grade of primary schools in Tehran city, Iran, with normal intelligence [intelligence quotient]. Nondyslexic children were at the age of 7.7 to 8.7 years (mean=7.6) and dyslexics were 7.8 to 9.4 years old (mean=8.1). Reading accuracy and speed were assessed by text reading (Diagnostic Reading Test), and high frequency word, low frequency word and nonword reading (Reading and Dyslexia Test).
Results: Dyslexic readers needed more time than non-dyslexics when naming objects (p<0.001), numbers (p=0.001) and letters (p<0.001). The mean of dyslexics z-scores were -1.98 on objects, -1.96 on numbers and 3.35 on letters. 42% of dyslexics did not show any deficit on rapid automatized naming task. All of the subtests were correlated to reading speed (p<0.050), but among subtests of rapid automatized naming task, only letter naming was correlated to reading accuracy (p<0.050).
Conclusion: More than half of dyslexics cases showed an apparent deficit in naming speed (objects, numbers and letters), which was more evident at letters. Naming speed was related to reading accuracy and reading speed; although the relationship was stronger with the second one.
2. Vaessen A, Gerretsen P, Blomert L. Naming problems do not reflect a second independent core deficit in dyslexia: double deficits explored. J Exp Child Psychol. 2009;103(2):202-21.
3. Willburger E, Fussenegger B, Moll K, Wood G, Landerl, K. Naming speed in dyslexia and dyscalculia. Learn Ind Diff. 2008;18(2):224-36.
4. Jones MW, Branigan HP, Hatzidaki A, Obregón M. Is the ‘naming’ deficit in dyslexia a misnomer? Cognition. 2010;116(1):56-70.
5. Ashtary A, Shirazi TS. Evaluation and comparison of phonological awareness and naming speed in normal and dyslexic children. Journal of Rehabilitation. 2004;5(3):49-54. Persian.
6. Bonifacci P, Snowling MJ. Speed of processing and reading disability: a cross-linguistic investigation of dyslexia and borderline intellectual functioning. Cognition. 2008;107(3):999-1017.
7. Serrano F, Defior S. Dyslexia speed problems in a transparent orthography. Ann Dyslexia. 2008;58(1):81-95.
8. Shirazi TS, Nilipour R. Developing and standardization of a diagnostic reading test. Journal of Rehabilitation. 2004;5(1-2):7-11. Persian.
9. Behmard F, Estaki M, Ashayeri H, Asadpoor H. The effectiveness of gross and fine motor training on reducing symptoms of dyslexia. Journal of Learning Disabilities. 2013;2(2);25-39.
10. Soleymani Z, Nemati P, Barkhordar A, Baghestani A. Detection of cut-off point for rapid automized naming test in good readers and dyslexics. Audiol. 2013;22(4):90-7. Persian.
11. Di Filippo G, Zoccolotti P, Ziegler JC. Rapid naming deficits in dyslexia: a stumbling block for the perceptual anchor theory of dyslexia. Dev Sci. 2008;11(6):40-7.
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