An eye-movement study on visual information processing by children with developmental disorders

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This study explored characteristics of visual information processing by children with developmental disorders, in particular those with developmental dyslexia, using eye-movement analysis. Three findings were obtained. First, children with developmental dyslexia showed a biased fixation pattern during Kanji reading. Specifically, they often gazed at upper-left area for every Kanji characters. Second, both effective visual field and visual attention span of dyslexic children were smaller than those of normal children. Third, dyslexic adolescents showed problems with eye movement, for example, repeated re-reading of each word, in reading of comprehension passages in the National Center Test.