Ambiguity in the brain: What brain imaging reveals about the processing of syntactically ambiguous sentences
Ambiguity in the brain: What brain imaging reveals about the processing of syntactically ambiguous sentences
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DOI：
10.1037/0278-7393.29.6.1319
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发表时间：
2003-11-01
影响因子：
2.6
通讯作者：
Carpenter, PA
中科院分区：
文献类型：
--
作者：
Mason, RA;Just, MA;Carpenter, PA
两项功能磁共振成像研究探讨了在处理句法歧义句过程中，语言相关区域的大脑活动的时间进程和幅度。在实验1中，较高水平的激活被发现在阅读不喜欢的句法结构，以及更复杂的结构。在实验2A和2B中，与句法复杂性匹配的明确句子相比，发现歧义句子的大脑激活水平更高，即使在歧义被解决时有利于首选的句法结构（尽管在以前的阅读时间结果中没有这种差异）。尽管结果可以与句子解析的串行或并行模型相协调，但它们可以更好地适应并行框架。串行模型可以被公认为一致的，但只有通过包括一个并行组件。的功能磁共振成像数据表明参与的并行组件在句法分析，可能是一个选择机制或多个解析的建设。
Two fMRI studies investigated the time course and amplitude of brain activity in language-related areas during the processing of syntactically ambiguous sentences. In Experiment 1, higher levels of activation were found during the reading of unpreferred syntactic structures as well as more complex structures. In Experiments 2A and 2B higher levels of brain activation were found for ambiguous sentences compared with unambiguous sentences matched for syntactic complexity, even when the ambiguities were resolved in favor of the preferred syntactic construction (despite the absence of this difference in previous reading time results). Although results can be reconciled with either serial or parallel models of sentence parsing, they arguably fit better into the parallel framework. Serial models can admittedly be made consistent but only by including a parallel component. The fMRI data indicate the involvement of a parallel component in syntactic parsing that might be either a selection mechanism or a construction of multiple parses.