Data_Sheet_1_An ERP Study on the Role of Phonological Processing in Reading Two-Character Compound Chinese Words of High and Low Frequency.PDF

Unlike in English, the role of phonology in word recognition in Chinese is unclear. In this event-related potential experiment, we investigated the role of phonology in reading both high- and low-frequency two-character compound Chinese words. Participants executed semantic and homophone judgment tasks of the same precede-target pairs. Each pair of either high- or low-frequency words were either unrelated (control condition) or related semantically or phonologically (homophones). The induced P200 component was greater for low- than for high-frequency word-pairs both in semantic and phonological tasks. Homophones in the semantic judgment task and semantically-related words in the phonology task both elicited a smaller N400 than the control condition, word frequency-independently. However, for low-frequency words in the phonological judgment task, it was found that the semantically related pairs released a significantly larger P200 than the control condition. Thus, the semantic activation of both high- and low-frequency words may be no later than phonological activation.

与英语不同，汉语词汇识别中语音学（Phonology）的作用尚不明确。本研究通过事件相关电位（Event-related Potential, ERP）实验，考察了语音学在高低频双字合成汉语词汇阅读中的作用。被试需完成相同启动-靶刺激对的语义判断与同音判断任务。每对高低频词汇可分为三类：无关（控制条件）、语义相关，或语音相关（即同音词）。语义判断与语音判断任务中，低频词汇对引发的P200成分波幅均高于高频词汇对。语义判断任务中的同音词，与语音判断任务中的语义相关词，其引发的N400成分波幅均低于控制条件，且不受词汇频率影响。但在语音判断任务的低频词汇组中，语义相关的词汇对引发的P200成分波幅显著高于控制条件。由此可见，高低频汉语词汇的语义激活可能并不晚于语音激活。