关键词: 重复获益效应, 情境模型, 文本阅读

Abstract: Text reading is one of the most complex and unique cognitive activities of human people and is also an important way for us to get information. An interesting phenomenon which is called repetition effect or reading benefit is that when a word or text is read twice, reading time generally decreases during the second occurrence,and it occurs because memory for the first occurrence facilitates reprocessing during the second occurrence.Because repetition effects provide a sensitive, implicit measure of the content and structure of memory, much research has been devoted to understanding the source of text repetition effects. In the present study,three experiment explored the levels of text representation that mediate text repetition effects in Chinese, following the Raney's context dependent continuum model. Participants read a set of short passages, each twice in succession.Experiment 1 examined whether there had repetition benefits in reading. The results showed that there have repetition benefits in reading, and people tend to naming a title to the text. In Experiment 2 , four passages' sentences were disrupted to form a bad situation model.The magnitude of the repetition benefit supported predictions of Raney’s model, indicating that the ease of forming a situation model contributed to the magnitude of the reprocessing benefit. In addition, representations organized around a good situation model were more sensitive to changes than were representations formed from reading without a good situation model. Two new factors were added to Experiment 3:paired related passages and interval condition.The results of experiment 3 did not support the suggestion that the surface form and textbase are bound to a well-developed situation model, thereby limiting repetition effects to similar linguistic contexts. Rather, the nature of the repetition benefits in the present series of experiments are better explained by the degree of overlap between passages at each of the three levels of text representation. The findings of this study suggests that there is a repetition benefits in Chinese reading,and a good situation model is an important factor in producing the repetition benefits.Overall, the experiments reported here suggest that Raney’s model can make a substantial contribution to explanations of how texts are represented in memory and how these representations can be recruited to the services of increased reading fluency.The result of experiment 3 is not totally in line with Raney's context-dependent representation model,and we think abstract and episodic accounts are also key factors affecting text reading.The results of these experiments provide preliminary support for the idea that the degree of overlap at each level of representation determines how much of a repetition benefit there is between passages.But understanding the source of text repetition effects still needs further investigation.

Key words: repetition benefit, the situation model, text reading