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KMID : 1100220050040020093
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Dementia and Neurocognitive Disorders
2005 Volume.4 No. 2 p.93 ~ p.96
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Deep Dyslexia: A Case Report
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Kwon Jay-C.
Ahn Sun-Young
Kim Seong-Hee
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Abstract
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Deep dyslexia is an acquired reading disorder characterized by semantic error, visual error and impairment of reading nonwords. We report a 58-year-old man with dyslexia and agraphia. On neuropsychological test, he showed severe semantic paralexia (e.g. chair misread as desk, desk as bookstore) and semantic paraphasia in picture naming (e.g. cap named as baseball bat, red pepper as eggplant, banana as tomato). He could not read nonwords correctly. He also showed severe impairment in writing including copying. His brain magnetic resonance image showed an acute cerebral infarction in left parietal lobe. We discuss the classification of the dyslexia and the proposed mechanism of deep dyslexia.
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KEYWORD
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Deep dyslexia, Semantic paralexia, Semantic paraphasia
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