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A new published study reveals substantial differences between how dyslexia impacts English and Chinese-language readers:-

English speakers who have development dyslexia usually don't have trouble recognizing letters visually, but rather just have a hard time connecting them to their sounds.

What about languages based on full-word character rather than sound-carrying letters? Researchers looking at the brains of dyslexic Chinese children have discovered that the disorder in that language often stems from two separate, independent problems: sound and visual perception.

The pronunciation of detailed and complex Chinese characters must be memorized, rather than sounded out like words in alphabet-based languages. That requirement led researchers to suspect that disabilities in the visual realm might come into play in dyslexia in that language. "A fine-grained visuospatial analysis must be performed by the visual system in order to activate the characters' phonological and semantic information," said lead autuhor Wai Ting Siok of the University of Hong Kong, in a prepared statement.

Source: Scientific American