Dyslexia's Impact Differs, Depending on the Language | 2008.04.14 |
The areas of the brain affected by dyslexia differ between children who learned to read in English and those who learned to read in Chinese, say researchers who compared MRI brain scans of children, the Associated Press reported. "This finding was very surprising to us. We had not ever thought that dyslexics' brains are different for children who read in English and Chinese. Our finding yields neurobiological clues to the cause of dyslexia," said study lead author Li-Hai Tan, a professor of linguistics and brain and cognitive sciences at the University of Hong Kong. The study was published Monday in the online edition of the Proceedings of the National Academy of Sciences. Children who learn English and other alphabetical languages learn the sounds of letters and how to combine them into words, while Chinese children memorize hundreds of symbols that represent words, Guinevere F. Eden, director of the Center for the Study of Learning at Georgetown University in Washington, D.C., told the AP. This finding shows that "we cannot just assume that any dyslexic child is going to be helped by the same kind of intervention," said Eden, who was not involved in the study. |