An electrophysiological study of mood, modal context, and anaphora
An electrophysiological study of mood, modal context, and anaphora
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DOI：
10.1016/j.brainres.2006.07.048
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发表时间：
2006-10-30
期刊：
影响因子：
2.9
通讯作者：
Baum, Shari R.
中科院分区：
文献类型：
--
作者：
Dwivedi, Veena D.;Phillips, Natalie A.;Baum, Shari R.
我们研究了模态信息是否会引起话语加工的经验效应。也就是说，像时态信息一样，在组织话语表征时与之相关的语言因素之一是情态，其中话语的语气表明它是否被断言。事件相关电位（ERP）被用来解决的问题，话语加工的定性性质，以及这个过程的时间过程。本实验研究了两句语篇中代词的消解，其中上下文句中包含一个假设的或实际的名词短语先行词。在这个2x2实验中的另一个因素是延续句的类型，它包括或排除了情态助动词（例如，必须，应该），并包含一个代词。直觉表明，假设的先行词后面跟着被断言存在的代词是不符合语法的，不像实际的先行词后面跟着这样的代词。结果证实了语法直觉，前者的话语显示异常，不像后者（控制）的话语。也就是说，在动词的位置在连续句中，我们发现了正面的积极性，与家庭的P600组件，而不是一个N400的效果，这表明，异常的目标句子造成了修改的话语结构。此外，表现出情态信息的句子在延续句中的其他点处导致负向波形，表明情态影响话语表征的整体结构复杂性。(c)2006 Elsevier B.V.保留所有权利。
We investigated whether modal information elicited empirical effects with regard to discourse processing. That is, like tense information, one of the linguistic factors shown to be relevant in organizing a discourse representation is modality, where the mood of an utterance indicates whether or not it is asserted. Event-related potentials (ERPs) were used in order to address the question of the qualitative nature of discourse processing, as well as the time course of this process. This experiment investigated pronoun resolution in two-sentence discourses, where context sentences either contained a hypothetical or actual Noun Phrase antecedent. The other factor in this 2 x 2 experiment was type of continuation sentence, which included or excluded a modal auxiliary (e.g., must, should) and contained a pronoun. Intuitions suggest that hypothetical antecedents followed by pronouns asserted to exist present ungrammaticality, unlike actual antecedents followed by such pronouns. Results confirmed the grammatical intuition that the former discourse displays anomaly, unlike the latter (control) discourse. That is, at the Verb position in continuation sentences, we found frontal positivity, consistent with the family of P600 components, and not an N400 effect, which suggests that the anomalous target sentences caused a revision in discourse structure. Furthermore, sentences exhibiting modal information resulted in negative-going waveforms at other points in the continuation sentence, indicating that modality affects the overall structural complexity of discourse representation. (c) 2006 Elsevier B.V. All rights reserved.