Pathological switching between languages after frontal lesions in a bilingual patient
Pathological switching between languages after frontal lesions in a bilingual patient
复制标题
DOI：
10.1136/jnnp.68.5.650
复制
发表时间：
2000-05-01
影响因子：
11
通讯作者：
Aglioti, S
中科院分区：
文献类型：
--
作者：
Fabbro, F;Skrap, M;Aglioti, S
大脑病变可能会改变双语受试者区分他们的语言并在适当的环境中使用每种语言的能力。表现出病态混合的患者在一个单一的话语中混合了不同的语言。相比之下，受病理性告密影响的患者在不同的话语中交替使用他们的语言（一个独立的语音片段，独立存在并传达自己的独立含义）。据报道，在左颞顶叶病变后出现病理性混合病例。相比之下，有关病理转换的神经位点的信息是稀缺的。在本文中的描述是第一次的病人与病变的左前扣带和额叶，也轻微涉及右前扣带区，谁提出了病理性语言之间的切换，没有任何其他语言障碍。因此，不同于病理混合，通常发生在双语失语症，病理转换可能是独立的语言机制。
Cerebral lesions may alter the capability of bilingual subjects to separate their languages and use each language in appropriate contexts. Patients who show pathological mixing intermingle different languages within a single utterance. By contrast, patients affected by pathological snitching alternate their languages across different utterances (a self contained segment of speech that stands on its own and conveys its own independent meaning). Cases of pathological mixing have been reported after lesions to the left temporoparietal lobe. By contrast, information on the neural loci involved in pathological switching is scarce. In this paper a description is given for the first time of a patient with a lesion to the left anterior cingulate and to the frontal lobe-also marginally involving the right anterior cingulate area-who presented with pathological switching between languages in the absence of any other linguistic impairment. Thus, unlike pathological mixing that typically occurs in bilingual aphasia, pathological switching may be independent of language mechanisms.