Application of Dual Route Model in Reading Korean Words in the Acquired Dyslexic Patient after Stroke.
- Author:
Sung Bom PYUN
1
;
Hanyoung JUNG
;
Kichun NAM
;
Myeong Ok KIM
;
Kyungduk CHO
;
Jaebeom JUNG
;
Hyojung SON
Author Information
1. Department of Rehabilitation Medicine, Asan Medical Center, University of Ulsan College of Medicine, Korea. rmpyun@amc.seoul.kr 1Department of Rehabilitation Medicine, Inha University Medical School, 2Department of Psychology, Korea University, 3Departm
- Publication Type:Original Article
- Keywords:
Dyslexia;
Reading;
Language disorders;
Orthographic processing
- MeSH:
Asian Continental Ancestry Group;
Dyslexia;
Dyslexia, Acquired;
Humans;
Language Disorders;
Occipital Lobe;
Reaction Time;
Semantics;
Stroke*;
Visual Perception
- From:Journal of the Korean Academy of Rehabilitation Medicine
2005;29(1):23-31
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
OBJECTIVE: To investigate whether the dual route model is applicable to Korean word reading in acquired dyslexia after stroke. METHOD: Sixty-two year old patient with dyslexia after left inferior temporal and occipital lobe infarct was evaluated according to the lexical processing. After evaluation of general cognitive and language function, visual perception, semantic, and lexical stages were assessed. RESULTS: Visual perception was appropriate, and semantic categorization and picture-word matching tasks were 80.6% and 78.6% correct, respectively. Lexical decision task showed no significant differences within word classes, except shorter reaction time in reading words of Korean origin than those of chinese origin (p <0.05). The patient was able to read only 39.8% of tested words, and he could not read all the non-words. Reading of high frequency word was superior (65.4%) to that of low frequency words (10.9%) and semantic errors were not remarkable (p <0.05). CONCLUSION: The patient showed characteristics of recovery from deep to phonologic dyslexia with impairment of grapheme to phoneme conversion (GPC) route. These findings support that dual route model is applicable to Korean word reading.
