雑誌文献を検索します。書籍を検索する際には「書籍検索」を選択してください。

検索

書誌情報 詳細検索 by 医中誌

Japanese

Deficits of Mnemonic Rhyme for the Multiplication Table (Kuku) after Right Putaminal Hemorrhage Maki Ishii 1 , Kazumi Hirayama 2 , Keiko Saito 1 , Daisuke komatsu 3 1epartment of Rehabilitation,Shioda Hospital 2Department of Behavioral Neurology and Cognitive Neuroscience,Tohoku University Graduate School of Medicine 3Department of Neurosurgery,Shioda Hospital Keyword: Kuku , multiplication table , acalculia , right hemisphere , position of 0 pp.607-613
Published Date 2009/5/1
DOI https://doi.org/10.11477/mf.1416100492
  • Abstract
  • Look Inside
  • Reference

Abstract

 In Japan, the multiplication table is learned predominantly by rote learning of reciting multiplication table (which is named Kuku) with a standardized mnemonic rhymes. The Kuku is memorized intensively by oral repetitions. Therefore, it is not clear whether the neuropsychological features of the deficit of the Kuku and that of the multiplication table in Western countries after brain injury are the same or not. Here we report the case of a 58-year-old right-handed man who suffered from an inability to perform calculations following right putaminal hemorrhage. His acalculia was caused, for the most part, by his failure to retrieve the Kuku, as well as his confusion over the positions of "0" when he wrote multiple-digit numbers. An analysis of his errors of the Kuku showed strong problem-size effect, which has been found not only in the studies of multiplication deficits both in patients and healthy subjects in Western countries, but also in the Japanese studies on children. Our patient applied the commutative law of multiplication and ordinal number line etc. to compensate for his deficit. Such compensation with preserved conceptual knowledge has also been previously reported in Western patients. Moreover, our patient did not make any errors when the first operand of the Kuku was 5. Sparing of multiplication errors when the first operand is 5 has been reported in another Japanese case study on acalculia as well as in studies of healthy Japanese children; however, this has never been reported in Western studies. Therefore, it was suggested that there were similarities as well as differences between the deficits of multiplication table in Western and Japanese patients after brain injury.

(Received: July 4,2008,Accepted: November 6,2008)


Copyright © 2009, Igaku-Shoin Ltd. All rights reserved.

基本情報

電子版ISSN 1344-8129 印刷版ISSN 1881-6096 医学書院

関連文献

もっと見る

文献を共有