中心词和非中心词在句法启动的词汇增强效应中存在不同的机制

句法启动中, 非中心词和中心词重复是否诱发出相似强度的词汇增强效应, 目前存在着较大的理论争议。本研究在汉语双宾结构和介宾结构上分别操纵中心词和非中心词重复, 并在确保具有合适统计检验力基础上, 完成了3个句法启动实验。实验结果清楚地显示中心词重复诱发了稳定的词汇增强效应, 非中心词中的直接宾语重复也诱发了稳定但相对较弱的词汇增强效应。在此基础上, 我们尝试提出一个解释框架以调和现有的理论争议。

Different mechanisms for head and non-head words in the lexical boost effect on syntactic priming

Lexical boost means that syntactic priming is enhanced by the lexical repetition between prime and target. It remains controversial whether the repetition of head words and that of non-head words induce similar boost effects. Two important theories in syntactic priming, the residual activation theory and the implicit learning theory, have quite different interpretations and predictions. The former holds that only the head word repetition can induce a lexical boost, while the latter holds that the non-head word repetition can induce a lexical boost of the same magnitude as the head word repetition does. There are conflicting experimental results on whether head and non-head word repetitions have similar lexical boost effects.