Event-related potentials elicited by spoken relative clauses
Event-related potentials elicited by spoken relative clauses
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DOI：
10.1016/s0926-6410(96)00070-5
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发表时间：
1997-03-01
期刊：
影响因子：
--
通讯作者：
Kutas, M
中科院分区：
文献类型：
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作者：
Muller, HM;King, JW;Kutas, M
在24名受试者听不同句法结构的常用句子时，从23个头皮部位获得了句子长度的事件相关电位(ERP)波形。批评材料包括36个句子，每个句子包含两种加工难度不同的关系从句中的一种，即主语-宾语(SO)和主语-主语(SS)关系从句。在逐字阅读实验中，SO和SS句子诱发的慢电位在时间动力学上与相同刺激诱发的慢电位有几个不同之处，尽管这两种模式的效应分布不同。就像书面句子一样，SO句子从语言上定义的“间隙”处开始存在大量的额叶-中央负效应；这种影响对于理解速度高于中位数的听者来说最大，并被假设为反映理解过程中在线加工需求的变化。
Sentence-length event-related potential (ERP) waveforms were obtained from 23 scalp sites as 24 subjects listened to normally spoken sentences of various syntactic structures. The critical materials consisted of 36 sentences each containing one of two types of relative clauses that differ in processing difficulty, namely Subject Object (SO) and Subject Subject (SS) relative clauses. Sentence-length ERPs showed several differences in the slow scalp potentials elicited by SO and SS sentences that were similar in their temporal dynamics to those elicited by the same stimuli in a word-by-word reading experiment, although the effects in the two modalities have non-identical distributions. Just as for written sentences, there was a large, fronto-central negativity beginning at the linguistically defined ''gap'' in the SO sentences; this effect was largest for listeners with above-median comprehension rates and is hypothesized to index changes in on-line processing demands during comprehension.