| 中文摘要 | 第1-4页 |
| ABSTRACT | 第4-8页 |
| CHAPTER ONE INTRODUCTION | 第8-14页 |
| ·Background and general description of the study | 第8-10页 |
| ·Definition of key terms | 第10-11页 |
| ·Bilingual | 第10页 |
| ·mental lexicon | 第10页 |
| ·The N400 event-related potential | 第10-11页 |
| ·L2 proficiency | 第11页 |
| ·Significance of the study | 第11-12页 |
| ·Contents of the remaining chapters | 第12-14页 |
| CHAPTER TWO LITERATURE REVIEW | 第14-36页 |
| ·Separate-store vs. shared-store model | 第14-15页 |
| ·Hierarchical models | 第15-22页 |
| ·Word association model vs. concept mediation model | 第15-17页 |
| ·Mixed model &. revised hierarchical model (RHM) | 第17-20页 |
| ·Critical comments on hierarchical models | 第20-22页 |
| ·Distributed models | 第22-27页 |
| ·De Groot (1992)’s distributed model | 第22-24页 |
| ·Kroll and De Groot(1997)’s distributed model | 第24-26页 |
| ·Dong(1998)’s shared (distributed) asymmetry model | 第26-27页 |
| ·The N400 event-related potential | 第27-33页 |
| ·ERP studies of semantic anomaly detection at the sentence level | 第28-30页 |
| ·ERP studies of semantic processing at the single-word level | 第30-31页 |
| ·ERP studies of semantic processing of Chinese-English bilinguals | 第31-33页 |
| ·Related findings considered proficiency factor (behavioral & neuroimaging studies) | 第33-36页 |
| CHAPTER THREE THE PRESENT STUDY | 第36-60页 |
| ·Research questions | 第36-37页 |
| ·Experiment 1 | 第37-46页 |
| ·Prediction | 第37页 |
| ·Method | 第37-41页 |
| ·Results | 第41-46页 |
| ·Discussions | 第46页 |
| ·Experiment 2 | 第46-53页 |
| ·Prediction | 第46-47页 |
| ·Method | 第47-48页 |
| ·Results | 第48-53页 |
| ·Discussion | 第53页 |
| ·Experiment 3 | 第53-60页 |
| ·Prediction | 第53-54页 |
| ·Method | 第54页 |
| ·Results | 第54-59页 |
| ·Discussion | 第59-60页 |
| CHAPTER FOUR GENERAL DISCUSSION AND CONCLUSION | 第60-66页 |
| ·Major Findings and Discussion of Present Research | 第60-63页 |
| ·Does the difference of processing mechanism in word recognition between L1 and L2 of less proficient Chinese-English bilinguals is greater than that of proficient bilinguals according to ERPs data (anterior negativity and posterior N400 during 300-5 | 第60-61页 |
| ·Do Chinese-English bilinguals exhibit attenuated posterior N400 amplitude and delayed anterior negativity in English word recognition compared with native speakers of English? If they do, how does that differentiation reflect the bilingual lexical r | 第61-63页 |
| ·Conclusions | 第63-64页 |
| ·Limitation | 第64-65页 |
| ·Implication for further study | 第65-66页 |
| ACKNOWLEDGEMENTS | 第66-68页 |
| REFERENCES | 第68-72页 |
| Appendix ⅠQuestionnaire for selecting participants | 第72-76页 |
| Appendix Ⅱ The Stimuli (English and their translation equivalents into Chinese) | 第76-77页 |
| Appendix Ⅲ The probe items (body parts) | 第77页 |
