Langdon D W, Warrington E K
National Hospital for Neurology & Neurosurgery, London, England.
J Int Neuropsychol Soc. 1997 May;3(3):260-8.
Arithmetical reasoning ability has been investigated in a group study of patients with unilateral cerebral lesions. Two series of 38 and 39 patients, who had suffered unilateral cerebral lesions of the right and left cerebral hemisphere, respectively, were investigated. They completed a neuropsychological battery that included a test of computation (Graded Difficulty Arithmetic, GDA; Jackson & Warrington, 1986), and a new test of numerical series completion (Arithmetical Reasoning Test, ART). Whereas the left-hemisphere lesion group were markedly more impaired on the GDA compared to both the right-hemisphere lesion group and a standardization sample, both lesion groups were equally severely impaired on the ART. It is suggested that the abstraction of numerical relations, which is essential to numerical series completion, relies on the integrity of the right hemisphere. A global model of arithmetic processing that incorporates these findings is proposed.
在一项针对单侧脑损伤患者的群体研究中，对算术推理能力进行了调查。分别对两组患者进行了研究，一组38例，另一组39例，他们分别患有右侧和左侧大脑半球的单侧脑损伤。他们完成了一套神经心理测试，其中包括一项计算测试（分级难度算术测试，GDA；杰克逊和沃林顿，1986年），以及一项新的数字序列完成测试（算术推理测试，ART）。与右侧脑损伤组和标准化样本相比，左侧脑损伤组在GDA测试中的受损程度明显更严重，而在ART测试中，两组脑损伤患者的受损程度同样严重。研究表明，数字序列完成所必需的数字关系抽象依赖于右半球的完整性。本文提出了一个纳入这些研究结果的算术处理整体模型。
