Journal

The Japanese journal of neuropsychology

[Vol.23 No.1 contents]
Japanese/English

Full Text of this Article
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ArticleTitle Brain plasticity and development of cognitive function from the viewpoint of developmental neuropsychology; Aphasia, Alexia, Agraphia, and Unilateral Spatial Neglect (USN) in a child
Language J
AuthorList Akira Uno1), Masato Kaneko2), Noriko Haruhara3), Masayuki Sasaki4), Makiko Kaga5)
Affiliation 1) Graduate School of Comprehensive Human Sciences, University of Tsukuba
2) Faculty of Medical Science for Health, Teikyo Heise University
3) Faculty of Health Science, Mejiro University
4) Musashi Hospital, National Center of Neurology and Psychiatry
5) NIMH, National Center of Neurology and Psychiatry
Publication Japanese Journal of Neuropsychology: 23 (1), 29-36, 2007
Received
Accepted
Abstract In this study, we investigated the time of brain lateralization for language, and localization of the function of directional attention and reading/writing in brain, by using neuropsychological assessments. Subjects are an aphasic patient who had a left brain damage at the age of two, a patient with unilateral spatial neglect who had a right brain damage several hours after birth, and two patients with dyslexia with dysgraphia who had a left brain damage including inferior parietal lobule at the age of eight. The results suggested that the language function may be lateralized in the left brain before the age of two, the function of directional attention is likely to be localized in the right brain several hours after birth and that of reading/writing is likely to be localized in the left inferior parietal lobule before the age of eight. It was also suggested that the function of reading/writing develops independently from that of manipulating non-verbal figures before eight.
Keywords aphasia in a child, Unilateral Spatial Neglect (USN) in a child, acquired alexia/agraphia in a child, developmental dyslexia

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