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Aphasia in childhood and the critical point of language Akira Uno 1 , Noriko Haruhara 1 , Masato Kaneko 1 , Takako Shinkai 2 , Kazuya Sakamoto 3 , Junko Kozuka 4 , Makiko Kaga 1 1National Institute of Mental Health, National Center of Neurology and Psychiatry 2Department of Rehabilitation, Nippon Medical School Second Hospital 3Department of Reha-bilitation, Higashimatsudo Municipal Hospital 4Department of Rehabilitation, Saitama Children's Hospital Keyword: 小児失語 , 側性化 , 改善度 , 到達度 , 責任病巣 , 流暢性 pp.694-700
Published Date 2003/10/10
DOI https://doi.org/10.11477/mf.1431100352

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  • Abstract
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 The purpose of this study is to investigate the critical point of language development from the viewpoint of the onset time and the recovery process of acquired childhood aphasia(ACA). The traditional clinical picture of ACA invariably claims nonfluency, and rapid and complete recovery. In our study, we investigated the symptoms, the recovery process and the lesion site in eight cases of ACA with localized lesions from cerebro-vascular disease mainly. As results, children with ACA showed higher recovery level than adult aphasics whose onset time was after 40 years of age, but their recovery level was almost the same as that of young aphasics whose onset time was between 15 and 27 year-old. Though the recovery level is high, the improvement was limited, and the scores of sentence repetition and Kanji writing were significantly lower than those of controls. As all children with ACA have lesions in the left hemisphere, and the earliest case of onset was presumed to be around two years of age, we suggest the possibility of the dominancy of the left hemisphere to be established in the second year after birth and the critical point of language development is assumed to be prior to the second year of age.


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電子版ISSN 1882-1243 印刷版ISSN 0001-8724 医学書院

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