Abstract
This case was a right-handed boy 13 years of age at the time psychological tests were conducted. His IQ was in the normal range (VIQ97, PIQ90, FIQ93), and his ability in phonological awareness manifested good performance. His scores in the Rey-Osterrieth Complex Figure Test and in katakana and kanji writing were 2 SD below those of the sixth grade norm. In addition, he had difficulties in reading and writing English. We applied the Sternberg task to measure visual memory span using random figure stimuli. The greater the number of stimuli, the lower was the accuracy of the task compared with the control. These results suggest that the subject is disabled at learning many figures. It has been reported that one of the causes underlying dysgraphia is visual memory disorders, and visual information processing would have an effect on reading in English. It is likely that fragile visual representation affected English reading as well as kanji writing in this case.
