The brain differentiates human and non-human grammars: Functional localization and structural connectivity
The brain differentiates human and non-human grammars: Functional localization and structural connectivity
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DOI：
10.1073/pnas.0509389103
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发表时间：
2006-02-14
影响因子：
11.1
通讯作者：
Anwander, A
中科院分区：
文献类型：
--
作者：
Friederici, AD;Bahlmann, J;Anwander, A
据称，人类语言能力是以处理分层结构序列的能力为基础的。这种人类能力超出了处理具有非人类灵长类动物中可观察到的相邻元素的简单转移概率的序列的能力。在这里，我们表明这两种序列类型的处理是由人脑的不同区域支持的。局部转换的处理由左额叶盖负责，该区域在系统发育上比布罗卡区更古老，专门负责层次依赖性的计算。纤维束成像数据揭示了这两个大脑区域的差异结构连接特征，为左下额皮质中两个区域的分离提供了额外的证据。
The human language faculty has been claimed to be grounded in the ability to process hierarchically structured sequences. This human ability goes beyond the capacity to process sequences with simple transitional probabilities of adjacent elements observable in non-human primates. Here we show that the processing of these two sequence types is supported by different areas in the human brain. Processing of local transitions is subserved by the left frontal operculum, a region that is phylogenetically older than Broca's area, which specifically holds responsible the computation of hierarchical dependencies. Tractography data revealing differential structural connectivity signatures for these two brain areas provide additional evidence for a segregation of two areas in the left inferior frontal cortex.