Processing linguistic complexity and grammaticality in the left frontal cortex
Processing linguistic complexity and grammaticality in the left frontal cortex
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DOI：
10.1093/cercor/bhj106
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发表时间：
2006-12-01
期刊：
影响因子：
3.7
通讯作者：
von Cramon, D. Yves
中科院分区：
文献类型：
--
作者：
Friederici, Angela D.;Fiebach, Christian J.;von Cramon, D. Yves
我们使用事件相关的功能磁共振成像直接比较与不同程度的语言复杂性与那些产生的处理不合语法的话语的血流动力学反应。我们证明了左下额叶皮层之间的分离的深额鳃盖，这响应于句法的侵犯，和布罗卡区的核心区域，即，下部的左部鳃盖在布罗德曼区44，其激活调制的功能的复杂性，良好的句子。这些数据表明，前额叶皮层的不同大脑区域支持从语言形式映射到意义的不同机制，从而将不合语法性与语言复杂性分开。
We used event-related functional magnetic resonance imaging to directly compare the hemodynamic responses associated with varying degrees of linguistic complexity with those engendered by the processing of ungrammatical utterances. We demonstrate a dissociation within the left inferior frontal cortex between the deep frontal operculum, which responds to syntactic violations, and a core region of Broca's area, that is, the inferior portion of the left pars opercularis in Brodmann area 44, the activation of which is modulated as a function of the complexity of well-formed sentences. The data demonstrate that different brain regions in the prefrontal cortex support distinct mechanisms in the mapping from a linguistic form onto meaning, thereby separating ungrammaticality from linguistic complexity.