半側空間無視症例の自発書字に見られた左の字画の脱落

概要

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We report a patient who developed hemi-spatial neglect and visuo-constructive disability caused by cerebral infarctions in the right parietal and occipital lobes. Her writing was characterized by omissions of the left strokes in several kana-characters as well as symptoms of spatial agraphia. When asked to count the number of strokes in kana-characters from memory, she also made a report that suggested omissions of the left strokes in the same characters. Based on those observations, we infer that the left hemi-spatial neglect affected the one higher level writing process which involves visual representation of kana-characters. Also, we hypothesize that the disorder on that level manifested itself in her handwriting because her visuo-constructive disability prevented the motor component of the writing process from compensating for that influence of hemi-spatial neglect.
日本基礎心理学会の論文
1994-08-31