Objective:In the present study, we explored numerical problems in individuals with aphasia. We investigate whether numerical deficits, usually accompanying aphasia, can be observed on number comprehension tasks that do not necessarily require an oral response.Method:Individuals with aphasia were classified into anterior, posterior, and global subgroups according to the lesion type. To investigate numerical cognition, we used a relatively recent tool, the Numerical Activities of Daily Living (NADL).Results:The results showed that individuals with aphasia have problems with tasks of basic number comprehension as well as in most NADL. In the formal part of the NADL, anterior aphasic patients made comparatively more errors than the posterior aphasic patients. Global aphasic patients presented an invariably poor performance on almost all tasks.Conclusion:The results provide insight into how numerical deficits may impair an individual with aphasia in activities of daily living. This study is a preliminary attempt to start the validation process of the NADL for the Greek population.

中文翻译：

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失语症和数学：基本数字理解和日常生活数字活动的缺陷

目的：在本研究中，我们探讨了失语症患者的数值问题。我们调查在不一定需要口头反应的数字理解任务中是否可以观察到通常伴随失语的数字缺陷。方法：根据病变类型将失语症个体分为前亚组、后亚组和整体亚组。为了研究数字认知，我们使用了一种相对较新的工具，即日常生活中的数字活动 (NADL)。结果：结果表明，失语症患者在基本数字理解任务以及大多数 NADL 方面都有问题。在 NADL 的正式部分，前部失语症患者比后部失语症患者犯的错误相对更多。全球失语症患者几乎在所有任务上都表现不佳。结论：结果提供了对数字缺陷如何影响失语症患者日常生活活动的洞察力。这项研究是为希腊人群启动 NADL 验证过程的初步尝试。