How the brain solves the binding problem for language: a neurocomputational model of syntactic processing
How the brain solves the binding problem for language: a neurocomputational model of syntactic processing
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DOI：
10.1016/j.neuroimage.2003.09.013
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发表时间：
2003-11-01
期刊：
影响因子：
5.7
通讯作者：
Hagoort, P
中科院分区：
文献类型：
--
作者：
Hagoort, P
句法是语言处理体系结构中的组成部分之一，它允许听者/读者将单词信息绑定到对多词话语的统一解释中。本文讨论了已观察到的与句法加工有关的事件相关电位效应。这些效应不同于语义N400的事实表明，大脑尊重语义绑定操作和句法绑定操作之间的区别。两种句法加工模型试图解释句法相关的事件相关电位效应。一种类型的模型是连续的，第一阶段本质上是纯粹的句法(语法优先模型)。另一种类型的模型是平行的，假设一旦信息可用，就会立即指导解释过程。这被称为直接性模型。提出了支持后一种模式的企业资源规划证据。其次，提出了一个显式的计算模型来解释ERP数据。该统一模型假设句法框架存储在存储器中，并基于口语或书面语形式的输入来检索。通过动态绑定过程将与各个词汇项相关联的句法框架统一成跨越整个话语的结构表示。在对句法的影像研究进行元分析的基础上，作者认为左额叶后下部皮质参与了句法框架的联结，而左额叶上皮层参与了对记忆中句法框架的提取。讨论了支持这一左额颞叶网络参与句法处理的病变数据。(C)2003 Elsevier Inc.保留所有权利。
Syntax is one of the components in the architecture of language processing that allows the listener/reader to bind single-word information into a unified interpretation of multiword utterances. This paper discusses ERP effects that have been observed in relation to syntactic processing. The fact that these effects differ from the semantic N400 indicates that the brain honors the distinction between semantic and syntactic binding operations. Two models of syntactic processing attempt to account for syntax-related ERP effects. One type of model is serial, with a first phase that is purely syntactic in nature (syntax-first model). The other type of model is parallel and assumes that information immediately guides the interpretation process once it becomes available. This is referred to as the immediacy model. ERP evidence is presented in support of the latter model. Next, an explicit computational model is proposed to explain the ERP data. This Unification Model assumes that syntactic frames are stored in memory and retrieved on the basis of the spoken or written word form input. The syntactic frames associated with the individual lexical items are unified by a dynamic binding process into a structural representation that spans the whole utterance. On the basis of a meta-analysis of imaging studies on syntax, it is argued that the left posterior inferior frontal cortex is involved in binding syntactic frames together, whereas the left superior temporal cortex is involved in retrieval of the syntactic frames stored in memory. Lesion data that support the involvement of this left frontotemporal network in syntactic processing are discussed. (C) 2003 Elsevier Inc. All rights reserved.