Lowder Matthew W, Gordon Peter C
University of California, Davis.
University of North Carolina at Chapel Hill.
Lang Cogn Neurosci. 2016;31(7):921-939. doi: 10.1080/23273798.2016.1183798. Epub 2016 May 19.
Previous work has shown that the difficulty associated with processing complex semantic expressions is reduced when the critical constituents appear in separate clauses as opposed to when they appear together in the same clause. We investigated this effect further, focusing in particular on complement coercion, in which an event-selecting verb (e.g., ) combines with a complement that represents an entity (e.g., ). Experiment 1 compared reading times for coercion versus control expressions when the critical verb and complement appeared together in a subject-extracted relative clause (SRC) (e.g., ) compared to when they appeared together in a simple sentence. Readers spent more time processing coercion expressions than control expressions, replicating the typical coercion cost. In addition, readers spent less time processing the verb and complement in SRCs than in simple sentences; however, the magnitude of the coercion cost did not depend on sentence structure. In contrast, Experiment 2 showed that the coercion cost was reduced when the complement appeared as the head of an object-extracted relative clause (ORC) (e.g., ) compared to when the constituents appeared together in an SRC. Consistent with the eye-tracking results of Experiment 2, a corpus analysis showed that expressions requiring complement coercion are more frequent when the constituents are separated by the clause boundary of an ORC compared to when they are embedded together within an SRC. The results provide important information about the types of structural configurations that contribute to reduced difficulty with complex semantic expressions, as well as how these processing patterns are reflected in naturally occurring language.
先前的研究表明,当关键成分出现在不同的从句中时,与处理复杂语义表达相关的难度会降低,而当它们出现在同一个从句中时则不然。我们进一步研究了这种效应,特别关注补语强制现象,即一个选择事件的动词(例如……)与一个代表实体的补语(例如……)结合。实验1比较了关键动词和补语在主语提取关系从句(SRC)中同时出现时(例如……)与在简单句中同时出现时,强制表达与控制表达的阅读时间。读者处理强制表达比处理控制表达花费更多时间,这重现了典型的强制成本。此外,读者处理SRC中动词和补语的时间比处理简单句中的时间少;然而,强制成本的大小并不取决于句子结构。相比之下,实验2表明,当补语作为宾语提取关系从句(ORC)的中心词出现时(例如……),与在SRC中成分同时出现时相比,强制成本降低了。与实验2的眼动追踪结果一致,语料库分析表明,与成分一起嵌入在SRC中相比,当成分被ORC的从句边界分隔时,需要补语强制的表达更频繁。这些结果提供了关于有助于降低复杂语义表达难度的结构配置类型的重要信息,以及这些处理模式如何在自然语言中得到体现。