Neural basis for sentence comprehension: Grammatical and short-term memory components

被引:193
作者
Cooke, A
Zurif, EB
DeVita, C
Alsop, D
Koenig, P
Detre, J
Gee, J
Pinango, M
Balogh, J
Grossman, M
机构
[1] Univ Penn, Med Ctr, Dept Neurol, Philadelphia, PA USA
[2] Univ Penn, Ctr Med, Dept Radiol, Philadelphia, PA USA
[3] Brandeis Univ, Volen Ctr Complex Syst, Waltham, MA USA
[4] Boston Univ, Sch Med, Neurol Dept, Aphasia Res Ctr, Boston, MA USA
关键词
sentence comprehension; syntax; grammar; memory; fMRI; inferior frontal cortex;
D O I
10.1002/hbm.10006
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
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.
引用
收藏
页码:80 / 94
页数:15
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