Do subcortical structures control 'language selection' in polyglots? Evidence from pathological language mixing
Do subcortical structures control 'language selection' in polyglots? Evidence from pathological language mixing
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DOI：
10.1080/13554790008402757
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发表时间：
2000-01-01
期刊：
影响因子：
0.8
通讯作者：
Cappa, SF
中科院分区：
文献类型：
--
作者：
Abutalebi, J;Miozzo, A;Cappa, SF
在多语言领域，“切换”定义了一种当说话者在不同语言之间切换时自动运行的机制，虽然这种机制的神经基础尚不清楚，但最近对多语言失语症的研究表明皮质下结构可能发挥作用。我们报告了一个皮质下多语言失语症的病例，这为基底神经节在切换机制中的作用提供了进一步的证据。一名通晓多种语言的女性（亚美尼亚语-英语-意大利语）在语言优势半球皮质下梗死后，出现了不流利的失语症，其特征是在口语生产任务中这些语言之间的病理性混合。该病例证实，皮质下结构的损伤可能会导致与语言选择有关的机制出现不同类型的功能障碍。
In the field of multilinguism, 'switching' defines a mechanism operating automatically when speakers shift among different languages, While the neural basis of this mechanism is unknown, recent studies of polyglot aphasia have suggested a possible role of subcortical structures, We report a case of subcortical polyglot aphasia which provides further evidence for a role of the basal ganglia in the switching mechanism. A polyglot female (Armenian-English-Italian), after a subcortical infarction in the language dominant hemisphere, developed a non-fluent aphasia characterized by pathological mixing among these languages in oral production tasks. This case confirms that damage to subcortical structures may result in different types of dysfunction in the mechanisms implicated in the selection of languages.