Acalculia is an acquired disorder in calculation abilities, usually associated with left posterior parietal damage. Two types of acalculic disorders are usually distinguished: (1) primary acalculia or anarithmetia, where the patient presents a loss of numerical concepts (difficulties are observed both in oral and written calculations), and (2) secondary acalculia due to a different disturbance in cognition and affecting mathematical abilities. Secondary acalculias are associated with aphasia, alexia, agraphia, executive function disorders, or visuospatial difficulties. This paper is a proposal for clinical intervention to rehabilitation of acquired primary and secondary acalculias.

中文翻译：

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获得性计算障碍的认知康复。

失算症是一种后天计算能力障碍，通常与左后顶叶损伤有关。通常区分两种类型的失算症：(1) 原发性失算症或算数失算症，患者出现数字概念丧失（在口头和书面计算中都观察到困难），以及 (2) 由于不同的计算障碍而导致的继发性失算症。认知并影响数学能力。继发性失算症与失语症、失读症、失写症、执行功能障碍或视觉空间困难有关。本文是对获得性原发性和继发性失算症康复的临床干预的建议。