Subject Filled-gap Effects: A Self-paced Reading Study with Mandarin Learners of English

This study examined how L1 Mandarin L2 English learners with different L2 proficiency levels processed the syntactic structure of English sentences. Using a self-paced reading paradigm, this study investigated three issues: first, whether Mandarin learners of English were able to predict the syntactic structure, subject filled-gap, in online English sentence reading; second, whether the parser would commit more strongly to the subject gap analysis when there is a longer distance between the filler and the potential gap; third, how L2 proficiency levels would influence this process. The results showed that regardless of their English proficiency levels, Mandarin learners of English were capable to predict a subject filled-gap when processing English sentences. Besides, the subject filled-gap effect was not found in the sentences with adjuncts between the filler and the potential gap. This indicated that L2 learners' predictive ability in syntactic processing did not need to be activated by the increase of processing time or difficulty. Due to the efficiency of sentence processing, there is no need to increase the processing burden for L2 learners.