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Chapter 1 Introduction

1.1 Background of the Present Study
In recently years, more and more linguists and educators have begun to doresearch from psychological and cognitive aspects. Memory, as a cognitive term, isvery familiar to us. Compared with long-term memory and short-term memory,working memory is regarded as a relatively new term among the whole cognitivesystem of human being. Working memory is not a simple cognitive system which canonly store information temporarily but an advanced cognitive system which involvesin dealing with many complex tasks (e.g.: reasoning, language comprehension)through processing information. As Carroll suggests (2000), working memory plays avital role in human information processing system.Working memory, as a cognitive system, is generally considered to operate boththe storage and processing functions in a same place, which is called working memorycapacity. Ever since this capacity was found, it has attracted many linguists’ andeducators’ attention. More and more linguists and educator began to do research aboutthe relationship between working memory and second language learning. To doresearch on it, the most effective measurement of working memory capacity, calledworking memory span came up.
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1.2 Significance of the Present Study
Differing from previous researches, the present study aims at finding out howworking memory capacity affects written language production. It is an empiricalresearch, which is based on theories of working memory, writing processes andsecond language performance. The study contains two independent tests: working memory span test and writing task test. The participants are English majors and thewriting task is an argumentation, which differs from the study of Yi and Luo. Fromthe theoretical aspect, the study has widened the research field of working memory.Besides, this study can offer some implications for improving learners’ workingmemory capacity and developing their writing abilities. Thus, the present study isvery significant both theoretically and practically. The thesis is made up of five chapters. Chapter one is the introduction of thestudy, including the background, significance and the overall study of the thesis.Chapter Two reviews all the relative literature theories, where theories of workingmemory and language production and the previous studies are introduced in details.Chapter Three is concerned with the empirical study, in which research questions,subjects, research procedure, data collection and analysis are introduced. ChapterFour presents the statistical results as well as the explanations and discussions.Chapter Five makes a conclusion of the whole study, summing up the major findings,and giving the pedagogical implications. The limitations of the study and somesuggestions for the further study are also addressed.
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Chapter 2 Literature Review

2.1 Theories on Working Memory
Since the study is about the effect of working memory capacity on Englishwritten production, the theories on working memory including working memory inhuman information process, functions of working memory and working memorymodels are reviewed in the this chapter. As Carroll (2000) suggested, according to the information processing system,environmental informa本论文由英语论文网提供整理，提供论文代写，英语论文代写，代写论文，代写英语论文，代写留学生论文，代写英文论文，留学生论文代写相关核心关键词搜索。