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作者 Marion, Sarah DeBoard
書名 Development of bimanual coordination in children with reading disabilities
國際標準書號 9780496333288
book jacket
說明 180 p
附註 Source: Dissertation Abstracts International, Volume: 64-03, Section: B, page: 1499
Chair: Warren S. Brown
Thesis (Ph.D.)--Fuller Theological Seminary, School of Psychology, 2003
The cerebral commissures connecting the two sides of the brain, including the corpus callosum (CC), have been recognized increasingly as an important functional component in the neurocognitive systems responsible for reading disability or dyslexia. A particularly informative area of study with respect to interhemispheric interactions in reading disability has been motor control and bimanual coordination. In this study, 30 children with dyslexia and 30 matched controls were tested on the computerized version of the Bimanual Coordination Test (cBCT) and various reading measures. Results of the current study confirm the hypothesized association between reading disability and dynamically controlled bimanual coordination. Evidence indicates that in this sample of clearly dyslexic children performance was significantly worse on many, but not all, aspects of cBCT performance. First, performance on a pure motor aspect of the cBCT (unimanual trials) revealed a greater differential in performance between the left and right hand for dyslexic children that follows the well-documented developmental progression of the corpus callosum. Second, groups differed on aspects of cBCT performance previously shown to relate to interhemispheric functioning. Third, significant relationships were demonstrated between reading performance and bimanual coordination, particularly those aspects of cBCT performance most related to interhemispheric functioning. Furthermore, the aspects of bimanual coordination implicated in this study suggest a relationship between interhemispheric mechanisms in the fine motor control and reading ability of dyslexic children. Specifically, poor performance on interhemispheric aspects of the task was significantly related to deficits on the Gray Oral Reading Test, Third Edition (GORT-III), two reading subtests of the Woodcock-Johnson Tests of Achievement (WJ-R), and the Rapid Automatized Naming Test (RAN). These findings are consistent with the idea that timing of information sharing between the two sides of the brain through the CC may be a critical deficit in developmental dyslexia. Although the link between motor processing and reading deficits is not automatic, it is increasingly recognized in the literature that individuals with dyslexia exhibit problems extending beyond those directly related to reading or spelling
School code: 0371
Host Item Dissertation Abstracts International 64-03B
主題 Psychology, Developmental
Psychology, Clinical
0620
0622
Alt Author Fuller Theological Seminary, School of Psychology
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