Neural basis for sentence comprehension: Grammatical and short-term memory components
Neural basis for sentence comprehension: Grammatical and short-term memory components
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DOI：
10.1002/hbm.10006
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发表时间：
2002-02-01
影响因子：
4.8
通讯作者：
Grossman, M
中科院分区：
文献类型：
--
作者：
Cooke, A;Zurif, EB;Grossman, M
我们用BOLD fMRI监测区域大脑活动，同时向受试者展示不同语法结构的书面句子(主语相关或宾语相关的中心嵌入从句)和他们的短期记忆需求(短期或长期先行-间隙联系)。与假字体基线相比，在所有句子条件下都招募了左侧后上颞叶皮质的核心区，这表明该区域在维持对所有句子常见的理解方面起着中心作用。无论语法结构如何，在长连接和短连接的句子中，右侧后上颞叶皮质被激活，这表明在句子理解过程中，这个脑区支持被动的短期记忆。左下额叶皮质的招募与既有宾语相关从句又有较长先行间隙联系的句子有最明显的联系，这表明该区域支持在理解语法复杂句子的过程中维持远距离句法依赖所需的认知资源。(C)2001年Wiley-Liss，Inc.
We monitored regional cerebral activity with BOLD fMRI while subjects were presented written sentences differing in their grammatical structure (subject-relative or object-relative center-embedded clauses) and their short-term memory demands (short or long antecedent-gap linkages). A core region of left posterior superior temporal cortex was recruited during all sentence conditions in comparison to a pseudofont baseline, suggesting that this area plays a central role in sustaining comprehension that is common to all sentences. Right posterior superior temporal cortex was recruited during sentences with long compared to short antecedent-gap linkages regardless of grammatical structure, suggesting that this brain region supports passive short-term memory during sentence comprehension. Recruitment of left inferior frontal cortex was most clearly associated with sentences that featured both an object-relative clause and a long antecedent-gap linkage, suggesting that this region supports the cognitive resources required to maintain long-distance syntactic dependencies during the comprehension of grammatically complex sentences. (C) 2001 Wiley-Liss, Inc.