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Whereas all groups were similarly affected during the left-hand tapping condition, in the right-hand tapping condition the good spelling group displayed significantly less tapping disruption than both poor spelling groups, who did not differ significantly from each other. From these results, it can be inferred that individuals with dyslexia and dysgraphia share a left-hemisphere processing limitation that is not confined to written language. In light of other relevant research findings, I suggest that this limitation is due to the absence of a disembedding scanning mechanism for converting spatial arrays (e.g., spelling patterns) to temporal form\u2014an impairment putatively caused by attempting to teach written language to children who are late in establishing left-hemisphere motor dominance.<\/jats:p>","DOI":"10.1177\/00222194030360040301","type":"journal-article","created":{"date-parts":[[2007,12,14]],"date-time":"2007-12-14T00:52:20Z","timestamp":1197593540000},"page":"307-317","source":"Crossref","is-referenced-by-count":10,"title":["Dyslexia and Dysgraphia"],"prefix":"10.1177","volume":"36","author":[{"given":"David S.","family":"Mather","sequence":"first","affiliation":[{"name":"University of Victoria, Victoria, British Columbia, Canada,"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2003,7,1]]},"reference":[{"key":"atypb1","doi-asserted-by":"publisher","DOI":"10.2466\/pms.1975.40.3.719"},{"key":"atypb2","doi-asserted-by":"publisher","DOI":"10.1037\/0022-0663.73.5.712"},{"key":"atypb3","unstructured":"Aschoff, J.C. 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