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      Ideographic Alexia without Involvement of the Fusiform Gyrus in a Korean Stroke Patient: A Serial Functional Magnetic Resonance Imaging Study

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      https://www.riss.kr/link?id=A103937122

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      다국어 초록 (Multilingual Abstract)

      Background Korean orthography is composed of Hanja (ideograms) and Hangul (phonograms). Based on previous studies, the fusiformgyrus has been associated with ideogram reading. We examine serial functional magnetic resonance imaging (fMRI) images in a patient exhibitingdissociation of Hanja and Hangul reading to identify brain areas associated with Hanja reading.
      Case Report fMRI were taken of a 63-year-old man showing profound Hanja alexia with normal Hangul reading after an acute stroke involvingthe left frontal and parietal lobes, who later spontaneously recovered his Hanja reading ability. Scans were taken while performingHanja and Hangul reading tasks on three occasions. As a result, in spite of having profound Hanja alexia, partial activation of the fusiformgyrus was observed on the first fMRI. Serial fMRI scans showed activation of the bilateral middle frontal gyri that increased in parallel withthe patient’s recovery of Hanja reading.
      Conclusions The frontal lobe, not only fusiform gyrus, may play role in reading Hanja, although more evidence is needed.
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      Background Korean orthography is composed of Hanja (ideograms) and Hangul (phonograms). Based on previous studies, the fusiformgyrus has been associated with ideogram reading. We examine serial functional magnetic resonance imaging (fMRI) images in a ...

      Background Korean orthography is composed of Hanja (ideograms) and Hangul (phonograms). Based on previous studies, the fusiformgyrus has been associated with ideogram reading. We examine serial functional magnetic resonance imaging (fMRI) images in a patient exhibitingdissociation of Hanja and Hangul reading to identify brain areas associated with Hanja reading.
      Case Report fMRI were taken of a 63-year-old man showing profound Hanja alexia with normal Hangul reading after an acute stroke involvingthe left frontal and parietal lobes, who later spontaneously recovered his Hanja reading ability. Scans were taken while performingHanja and Hangul reading tasks on three occasions. As a result, in spite of having profound Hanja alexia, partial activation of the fusiformgyrus was observed on the first fMRI. Serial fMRI scans showed activation of the bilateral middle frontal gyri that increased in parallel withthe patient’s recovery of Hanja reading.
      Conclusions The frontal lobe, not only fusiform gyrus, may play role in reading Hanja, although more evidence is needed.

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      참고문헌 (Reference)

      1 Sakurai Y, "Pure alexia for kana. Characterization of alexia with lesions of the inferior occipital cortex" 268 : 48-59, 2008

      2 Chee MW, "Overlap and dissociation of semantic processing of Chinese characters, English words, and pictures : evidence from fMRI" 12 : 392-403, 2000

      3 Yoon HW, "Neural mechanisms of Korean word reading : a functional magnetic resonance imaging study" 373 : 206-211, 2005

      4 Iwata M, "Neural mechanism of reading and writing in the Japanese language" 1 : 43-52, 1986

      5 Soma Y, "Lexical agraphia in the Japanese language. Pure agraphia for Kanji due to left posteroinferior temporal lesions" 112 (112): 1549-1561, 1989

      6 Pillai JJ, "Insights into adult postlesional language cortical plasticity provided by cerebral blood oxygen level-dependent functional MR imaging" 31 : 990-996, 2010

      7 JayC.Kwon, "Hanja Alexia with Agraphia After Left Posterior Inferior Temporal Lobe Infarction: A Case Study" 대한의학회 17 (17): 91-95, 2002

      8 Sakurai Y, "Fusiform type alexia : pure alexia for words in contrast to posterior occipital type pure alexia for letters" 247 : 81-92, 2006

      9 Lee KM, "Functional MRI comparison between reading ideographic and phonographic scripts of one language" 91 : 245-251, 2004

      10 Kwon M, "Double dissociation of Hangul and Hanja reading in Korean patients with stroke" 54 : 199-203, 2005

      1 Sakurai Y, "Pure alexia for kana. Characterization of alexia with lesions of the inferior occipital cortex" 268 : 48-59, 2008

      2 Chee MW, "Overlap and dissociation of semantic processing of Chinese characters, English words, and pictures : evidence from fMRI" 12 : 392-403, 2000

      3 Yoon HW, "Neural mechanisms of Korean word reading : a functional magnetic resonance imaging study" 373 : 206-211, 2005

      4 Iwata M, "Neural mechanism of reading and writing in the Japanese language" 1 : 43-52, 1986

      5 Soma Y, "Lexical agraphia in the Japanese language. Pure agraphia for Kanji due to left posteroinferior temporal lesions" 112 (112): 1549-1561, 1989

      6 Pillai JJ, "Insights into adult postlesional language cortical plasticity provided by cerebral blood oxygen level-dependent functional MR imaging" 31 : 990-996, 2010

      7 JayC.Kwon, "Hanja Alexia with Agraphia After Left Posterior Inferior Temporal Lobe Infarction: A Case Study" 대한의학회 17 (17): 91-95, 2002

      8 Sakurai Y, "Fusiform type alexia : pure alexia for words in contrast to posterior occipital type pure alexia for letters" 247 : 81-92, 2006

      9 Lee KM, "Functional MRI comparison between reading ideographic and phonographic scripts of one language" 91 : 245-251, 2004

      10 Kwon M, "Double dissociation of Hangul and Hanja reading in Korean patients with stroke" 54 : 199-203, 2005

      11 Kim H, "Dissociation of pure korean words and Chinese-derivative words in phonological dysgraphia" 74 : 134-137, 2000

      12 Tan LH, "Brain activation in the processing of Chinese characters and words : a functional MRI study" 10 : 16-27, 2000

      13 Yoon HW, "An fMRI study of Chinese character reading and picture naming by native Korean speakers" 392 : 90-95, 2006

      14 Kawamura M, "Alexia with agraphia of kanji(Japanese morphograms)" 50 : 1125-1129, 1987

      15 Kawahata N, "Alexia with agraphia due to the left posterior inferior temporal lobe lesion--neuropsychological analysis and its pathogenetic mechanisms" 33 : 296-310, 1988

      16 Sakurai Y, "Alexia and agraphia with lesions of the angular and supramarginal gyri : evidence for the disruption of sequential processing" 288 : 25-33, 2010

      17 Wu CY, "A meta-analysis of fMRI studies on Chinese orthographic, phonological, and semantic processing" 63 : 381-391, 2012

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      학술지 이력

      학술지 이력
      연월일 이력구분 이력상세 등재구분
      2024 평가예정 재인증평가 신청대상 (재인증)
      2021-01-01 평가 등재학술지 선정 (계속평가) KCI등재
      2020-12-01 평가 등재후보로 하락 (재인증) KCI등재후보
      2017-01-01 평가 등재학술지 유지 (계속평가) KCI등재
      2013-01-01 평가 등재 1차 FAIL (등재유지) KCI등재
      2010-01-01 평가 등재학술지 선정 (등재후보2차) KCI등재
      2009-01-01 평가 등재후보 1차 PASS (등재후보1차) KCI등재후보
      2007-01-01 평가 등재후보학술지 선정 (신규평가) KCI등재후보
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      학술지 인용정보

      학술지 인용정보
      기준연도 WOS-KCI 통합IF(2년) KCIF(2년) KCIF(3년)
      2016 0.24 0.24 0.29
      KCIF(4년) KCIF(5년) 중심성지수(3년) 즉시성지수
      0.3 0.24 0.707 0.03
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