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Hanja Alexia with Agraphia After Left Posterior Inferior Temporal Lobe Infarction: A Case Study

2002; Korean Academy of Medical Sciences; Volume: 17; Issue: 1 Linguagem: Inglês

10.3346/jkms.2002.17.1.91

1598-6357

Jay C. Kwon, Hyun Jeong Lee, Juhee Chin, Young Mi Lee, HyangHee Kim, Duk L. Na,

EEG and Brain-Computer Interfaces

Very few countries in the world use languages that can be written in both ideogram, a graphic record of a meaning, and phonogram, a graphic record of a sound.Reading or writing impairment of these two written systems after brain damage may provide information about whether or not phonogram and ideogram are mediated in different brain regions.Many studies of phonogram and ideogram originated from Japanese in which dual orthographic system is employed; Kana (phonograms) and Kanji (ideograms) (1-12).Japanese authors have found a double dissociation between Kana and Kanji impairments in brain-damaged patients and reported that Kanji is processed mainly in left posterior inferior temporal area (4-9).On the contrary, there have been few studies on Korean written language (13, 14), another orthographic system that also uses both phonogram (Hangul) and Chinese ideogram (Hanja).We report a man with alexia and agraphia for Hanja but intact reading and writing for Hangul after a left posterior inferior temporal lobe infarction.Interestingly,