Brain disorders that cause dyslexia in Chinese people, which use a logographic language, are different from those experienced by people who use an alphabetic system. Until now, the left temporoparietal brain region was suggested as biological root of dyslexia. Moreover, it was assumed that the disease was a common biological origin for all languages, although work in this area were based solely on alphabetic languages.
The left temporoparietal region of the brain is responsible for the analysis of phonemes and converting units of writing (graphemes) in other phonological (phonemes) in short, two of the fundamental cognitive processes for reading. In one study, a team from the National Institute of Mental Health, part of the U.S. Institutes of Health in Bethesda (Maryland), has used magnetic resonance imaging in Chinese children with reading problems to show that the failure lies in the Gyrus mediofrontal left.
The problems of reading Chinese is manifested by two deficits: one associated with the conversion of the graphics in another syllable, with the transfer of the semantic graph.
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