Cognitive neuropsychological assesment in pure alexic patient with letter-by-letter reading using fMRl - Single case study -

주변성 난독증의 특성과 대뇌활성화 양상 - 단일사례연구 -

  • 손효정 (고려대학교 심리학과) ;
  • 편성범 (울산의대 서울아산병원 재활의학과) ;
  • 김충명 (고려대학교 심리학과) ;
  • 남기춘 (고려대학교 심리학과)
  • Published : 2005.11.17

Abstract

In this study we investigated the cognitive neuropsychological characteristics and the underlying mechanism in a letter-by-letter reading dyslexic patient after cerebral infarct of left posterior cerebral artery using fMRl, The results of cognitive neuropsychological assesment are visual perception was appropriate, and semantic categorization, picture naming and picture-word matching tasks were above83% correct, respectively. However, she was very poor in lexical decision task. The selective reading impairment is thought to result from the disruption of the left occipitotemporal region included fusiform gyrus. In fMRl results, the activation level increase din the right occipitotemporal region included fusiform gyrus compared with normal group in compensation for left impairment and more increased in pseudo word reading task than word reading on account of familiarity.

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