J Korean Neurol Assoc > Volume 20(1); 2002 > Article
Journal of the Korean Neurological Association 2002;20(1): 15-26.
무시난독증에서의 가로읽기와 세로읽기의 차이 - 증례 연구 -
이병화, 이경숙 윤수진 이영미 김향희 권재철 강수진 나덕렬
"성균관대학교 의과대학 삼성서울병원 신경과, 연세의료원 재활병원 언어치료실, 성균관대학교 의과대학 마산삼성병원 신경과"
"Horizontal versus Vertical Reading in Neglect Dyslexia - A Case Study -"
Byung H. Lee
"Department of Neurology, Samsung Medical Center, Sungkyunkwan University, Rehabilitation Hospital, Yonsei University Medical Center Masan Samsung Hospital, Sungkyunkwan University"
Abstract
"Background : Neglect dyslexia is a type of neglect syndrome, in which patients with unilateral hemisphere injury omit or misread the contralateral side of a text or the initial letters of a word. Hangul can be arrayed vertically (vertical reading, VR) as well as horizontally (horizontal reading, HR). Thus, HR and VR can be differentially affected in neglect dyslexia. We conducted an experiment in a 66 year-old woman who suffered from neglect dyslexia after a right cerebral infarction. We compared HR with VR in terms of error frequencies and patterns. Methods : Stimuli for neglect dyslexia consisted of 227 words. The 227 words were written horizontally or vertically (total 554 words) and were presented in random order. The patient was asked to read the words and the examiner recorded the patient s responses and reaction times. Results : The differences in HR and VR were as follows: 1) the error frequency in HR (59.0%) was higher than the error frequency in VR (20.3%), 2) the most frequent error in HR was syllabic deletion (79.1%) whereas phonemic substitution (89.1%) predominated in VR, 3) the error rate was highest at the first syllabic position in HR whereas no position effect was noted in VR. Conclusions : Patients with neglect dyslexia make less error in VR than in HR. The neural processing of HR may be different from that of VR. VR may be an alternative reading strategy that may be useful during the recovery stage of neglect dyslexia.Key Words : Neglect dyslexia, Horizontal reading, Vertical reading, Neglect syndrome, Hangul"
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