Auditory language comprehension: An event-related fMRI study on the processing of syntactic and lexical information
Auditory language comprehension: An event-related fMRI study on the processing of syntactic and lexical information
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DOI：
10.1006/brln.2000.2313
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发表时间：
2000-09-01
影响因子：
2.5
通讯作者：
von Cramon, DY
中科院分区：
文献类型：
--
作者：
Friederici, AD;Meyer, M;von Cramon, DY
研究人员通过事件相关功能磁共振成像（fMRI）研究了听觉语言处理中不同大脑区域的功能特异性，同时受试者聆听存在或不存在语义和句法信息的语音输入。有两个包含句法结构的句子条件，即正常语音（由功能词和实词组成）、句法语音（由功能词和伪词组成），以及两个词表条件，即实词和伪词。一般来说，听觉语言的处理与初级听觉皮层和双侧颞上回相邻区室的显着激活相关。正常言语的处理似乎具有特殊的状态，因为在这种情况下没有观察到额叶激活，但在其他三种情况下却观察到了额叶激活。这种差异可能表明正常语音理解过程中使用的语言过程具有一定的自动化性。当考虑其他三个条件时，我们发现这些条件与左右额叶皮质的激活相关。仅当句法过程处于焦点时，才发现双侧平面极和左额叶盖深层的激活增加。因此，目前的数据可以表明在理解过程中处理句法信息时左额叶和双侧颞叶皮层的参与。 (C) 2000 年学术出版社。
The functional specificity of different brain areas recruited in auditory language processing was investigated by means of event-related functional magnetic resonance imaging (fMRI) while subjects listened to speech input varying in the presence or absence of semantic and syntactic information. There were two sentence conditions containing syntactic structure, i.e., normal speech (consisting of function and content words), syntactic speech (consisting of function words and pseudowords), and two word-list conditions, i.e., real words and pseudowords. The processing of auditory language, in general, correlates with significant activation in the primary auditory cortices and in adjacent compartments of the superior temporal gyrus bilaterally. Processing of normal speech appeared to have a special status, as no frontal activation was observed in this case but was seen in the three other conditions. This difference may point toward a certain automaticity of the linguistic processes used during normal speech comprehension. When considering the three other conditions, we found that these were correlated with activation in both left and right frontal cortices. An increase of activation in the planum polare bilaterally and in the deep portion of the left frontal operculum was found exclusively when syntactic processes were in focus. Thus, the present data may be taken to suggest an involvement of the left frontal and bilateral temporal cortex when processing syntactic information during comprehension. (C) 2000 Academic Press.