Shared Language: Overlap and Segregation of the Neuronal Infrastructure for Speaking and Listening Revealed by Functional MRI
Shared Language: Overlap and Segregation of the Neuronal Infrastructure for Speaking and Listening Revealed by Functional MRI
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DOI：
10.1177/0956797611418347
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发表时间：
2011-09-01
影响因子：
8.2
通讯作者：
Hagoort, Peter
中科院分区：
文献类型：
--
作者：
Menenti, Laura;Gierhan, Sarah M. E.;Hagoort, Peter
大脑的语言生成系统是否也参与了语言理解，这是一个有很大争议的话题。研究的重点是听是否涉及运动区，但说和听之间的重叠可能不仅发生在主要的感觉和运动层面，而且还发生在语言层面(发生语义、词汇和句法过程)。使用功能磁共振在语音理解和产生过程中的适应，我们发现大脑中参与语义、词汇和句法加工的区域在说和听中大部分是相同的。初级加工负荷(表示感觉和运动过程)的效应在听觉皮质和左下额叶皮质重叠，但在运动皮质没有重叠，那里的加工负荷只影响说话时的活动。这些结果表明，语言系统的语言部分同时用于说和听，但运动系统似乎并不对听力起到至关重要的作用。
Whether the brain's speech-production system is also involved in speech comprehension is a topic of much debate. Research has focused on whether motor areas are involved in listening, but overlap between speaking and listening might occur not only at primary sensory and motor levels, but also at linguistic levels (where semantic, lexical, and syntactic processes occur). Using functional MRI adaptation during speech comprehension and production, we found that the brain areas involved in semantic, lexical, and syntactic processing are mostly the same for speaking and for listening. Effects of primary processing load (indicative of sensory and motor processes) overlapped in auditory cortex and left inferior frontal cortex, but not in motor cortex, where processing load affected activity only in speaking. These results indicate that the linguistic parts of the language system are used for both speaking and listening, but that the motor system does not seem to provide a crucial contribution to listening.