Departamento de Neurología y Neurocirugía, Hospital Clínico de la Universidad de Chile, Santiago, Chile.
Department of Psychology, Charles E. Schmidt College of Science, Florida Atlantic University, Davie, FL, USA.
Arch Clin Neuropsychol. 2021 May 21;36(4):455-464. doi: 10.1093/arclin/acaa072.
Patients with aphasia can present a type of acalculia referred to as aphasic acalculia.
To investigate the correlation and to test regression models for one- and two-digit calculation skills using verbal and nonverbal predictors.
We selected an aphasia sample of 119 men and 81 women with a mean age of 57.37 years (SD = 15.56) and an average level of education of 13.52 years (SD = 4.08). Spanish versions of the Western Aphasia Battery and Boston Diagnostic Aphasia Examination, plus a Written Calculation test, were individually administered. The calculation section of the Western Aphasia Battery and the Written Calculation tests were used to pinpoint calculation difficulties.
Calculation difficulties were more severe in Global and Mixed non-fluent aphasia; they were very similar in Broca, Conduction, and Amnesic Aphasia. All correlations between the two calculation subtests and the other subtests of the Western Aphasia Battery were statistically significant. Calculation subtests correlated negatively with age and positively with schooling. Sex and time post-onset did not show any correlation with the calculation scores. Education, Reading, Block Design, and Raven's Colored Progressive Matrices were significant predictors of Western Aphasia Battery Calculation. Writing was the only significant predictor of the Written Calculation scores.
Nonverbal abilities were predictors of calculation tests, whereas agraphia defects were predictors of the Written Calculation test. Therefore, calculation abilities can be regarded both as written language-dependent and verbal language-independent.
失语症患者可能表现出一种称为失语性失算症的计算障碍。
使用言语和非言语预测因子，研究一位数和两位数计算技能的相关性并检验回归模型。
我们选择了 119 名男性和 81 名女性的失语症样本，平均年龄为 57.37 岁（SD=15.56），平均受教育年限为 13.52 年（SD=4.08）。单独进行了西班牙语版的西方失语症成套测验和波士顿诊断性失语症检查，以及书面计算测试。使用西方失语症成套测验的计算部分和书面计算测试来确定计算困难。
在全球和混合性非流利性失语症中，计算困难更为严重；在 Broca、传导性和遗忘性失语症中，计算困难非常相似。两个计算子测验与西方失语症成套测验的其他子测验之间的所有相关性均具有统计学意义。计算子测验与年龄呈负相关，与受教育程度呈正相关。性别和发病后时间与计算得分均无相关性。教育、阅读、积木设计和瑞文标准推理测验是西方失语症成套测验计算的显著预测因子。书写是书面计算分数的唯一显著预测因子。
非言语能力是计算测验的预测因子，而失写症缺陷是书面计算测验的预测因子。因此，计算能力既可以视为依赖书面语言，也可以视为独立于言语语言。
