Double Dissociation of Hangul and Hanja Reading in Korean Patients with Stroke

Vol. 54, No. 4, 2005

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Original Paper

Double Dissociation of Hangul and Hanja Reading in Korean Patients with Stroke
Miseon Kwon^a, Jong S. Kim^a, Jae-Hong Lee^a, Hyeonsub Sim^b, Kichun Nam^c, Heasuk Park^d

^aDepartment of Neurology, Asan Medical Center, University of Ulsan College of Medicine,
^bInterdisciplinary Program of Communication Disorders, Ewha Womans University,
^cDepartment of Psychology, Korea University,
^dDepartment of Rehabilitation, Severance Hospital, Yonsei University, Seoul, Republic of Korea

Address of Corresponding Author

Eur Neurol 2005;54:199-203 (DOI: 10.1159/000090709)

Key Words

Dyslexia
Hangul
Hanja
Phonogram
Ideogram
Double dissociation
Stroke

Abstract

The orthographic system of the Korean language consists of both phonogram (Hangul) and ideogram (Hanja). We report 2 patients who revealed selective impairment in reading either of orthographies after the brain damages. YJ, a 67-year-old man, showed Broca's aphasia and severe apraxia of speech after a stroke in the left inferior parietal lobe. He demonstrated predominant difficulties in reading phonogram. KS, a 51-year-old woman, had an intracerebral hemorrhage in the left parietal lobe. She showed anomic aphasia and a selective impairment on reading ideogram. These findings support the notion that recognition of visual words is processed in different ways depending on the characteristics of orthographic systems.

Author Contacts

Miseon Kwon
Department of Neurology, Asan Medical Center
388-1 Pungnap-dong, Songpa-gu
Seoul, 138-736 (Republic of Korea)
Tel. +82 2 3010 6866, Fax +82 2 474 4691, E-Mail mskwon@amc.seoul.kr

Article Information

Received: June 20, 2005
Accepted: November 15, 2005
Published online: January 6, 2006
Number of Print Pages : 5
Number of Figures : 4, Number of Tables : 0, Number of References : 17

Medline Abstract (ID 16401892)

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