听觉呈现条件下汉语双字词语义和语音启动的ERP研究

在词汇决定实验中研究语义启动和语音启动，材料为通过听觉呈现的汉语双字词组成的词对(间隔600ms)，记录行为数据和ERP数据，结果发现：(1)启动词与目标词之间的语义联系可显著改善对目标词的加工，表现为错误率降低、反应时缩短，以及N400波幅降低；(2)启动词与目标词之间的语音一致对目标词的加工既有干扰作用，又有促进作用。表现为错误率提高，但反应时趋向缩短，N400波幅亦呈下降趋势；(3)启动词与目标词首音相同比尾音相同有更大的干扰作用。

An ERP Study on Semantic and Phonological Priming with Two-Character Spoken Chinese Words

Using ERPs in the lexical decision task, the present study explored semantic priming and phonological priming effects with paired two-character Chinese words presenting by auditory(ISI=600ms). ERPs recording and behavioral data analysis revealed that (1) the semantic relationship between priming words and targets could improve the processing of the latter, which was shown by a lower error rate and shorter RT, as well as reduced N400 amplitude; (2) phonological congruency between priming and primed words had both an interference effect and a facility effect. This was demonstrated by the paradoxical findings that the error rate increased with a tendency of shortened RT in behavioral data, as well as a reduced amplitude of N400 in ERPs data; (3) the initial phonological overlap of priming and primed words revealed greater interference than the final phonological overlap.