Studies On Visual-spatial Cognition Characteristics Of Chinese Children With Different Achievement In Processing Characters

Reading is a important way to acquire information and to communicate. The individual with dyslexia will be affected in the development of cognition, emotion, self-concept and socialization. Therefore, the reason and characteristics of dyslexia become a hot and important problem to investigators. As Chinese is a system of ideogram, Chinese-reading need more visual-processing. Investigators have carried out some studies about visual-information processing of Chinese dyslexics, but the results isn't consistent.The neuroanatomical study on dyslexics revealed that dyslexic brains is more symmetric than others. It was supposed that the symmetrical brains would result from inhibited left-hemisphere growth along with enhanced right-hemisphere growth. Left-hemisphere deal with processing of language, and right-hemisphere deal with processing of much visual information mostly. Accordingly, it is supposed that dyslexics may have inferior reading skills with superior visual-spatial skills.The course of reading involve a series of different levels, such as lexical identification, sentence processing and chapter comprehension, and lexical level is the primary one. To make matters even more complicated, we tested visual-spatial cognition characteristics of Chinese children with different achievement in processing characters in lexical level.Base on review of domestic and foreign dyslexia studies and analysis of bifurcations and problems, we carried out the study. The study consists of three parts, involving five experiments. we tested visual-spatial cognition skills and characteristics of Chinese children with different achievement of characters-processing, by mental rotation and figure memory, and tested the characteristics that they utilize cognitive clue in characters processing by priming test.The results manifested that the children with inferior skills of characters-processing (CI) have not superior visual skills, they are equative on long-term memory of figures, and inferior to the children with superior skills of characters processing (CS) on mental rotation and working memory of figures. But only the...