Are multiplication facts implemented by the left supramarginal and angular gyri?

被引：50

作者：

van Harskamp, NJ ^{[1
]}

Rudge, P ^{[1
]}

Cipolotti, L ^{[1
]}

机构：

[1] UCL Natl Hosp Neurol & Neurosurg, Dept Neuropsychol, London WC1N 3BG, England

来源：

NEUROPSYCHOLOGIA | 2002年 / 40卷 / 11期

关键词：

dyscalculia; Gerstmann syndrome; selective multiplication preservation; subtraction impairment; supramarginal and angular gyri;

D O I：

10.1016/S0028-3932(02)00036-2

中图分类号：

B84 [心理学]; C [社会科学总论]; Q98 [人类学];

学科分类号：

03 ; 0303 ; 030303 ; 04 ; 0402 ;

摘要：

A patient with presumed cerebral vasculitis Showed preserved single digit multiplication facts and impaired single digit subtraction facts. Her ability to comprehend and manipulate numerical quantities was intact. Detailed analysis of her MRI-scan revealed a lesion involving the left parietal lobe including the supramarginal gyrus up to the intraparietal sulcus and extending posteriorly to involve part of the angular gyrus. This finding contradicts a previous report by Lee [Ann. Neurol. 48 (2000) 657] sugoesting that these areas are critical for multiplication. In addition, this case contradicts the predicted association between subtraction and quantity manipulation, proposed by Dehaerle's triple-code model [Cortex 33 (1997) 219]. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：1786 / 1793

页数：8

共 22 条

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