Abstract in English 8-9 Abstract in Chinese 10-11 List of Abbreviations 11-12 List of Tables 12-13 List of Figures 13-14 Chapter One Introduction 14-19 1.1 Background of the Study 14-15 1.2 Statement of Problems 15 1.3 Rationale for the Study 15-16 1.4 Purpose and Method of the Study 16 1.5 Significance of the Study 16-18 1.6 Organization of the Thesis 18-19 Chapter Two Literature Review 19-38 2.1 Introduction 19 2.2 Studies on Voice Onset Time 19-22 2.3 Studies on Categorical Perception 22-29 2.3.1 Infant and Adult Categorical Perception 23-26 2.3.2 Perceptual Assimilation Model 26-28 2.3.3 Within-Category Variation Sensitivity 28-29 2.4 Studies on Perceptual Training 29-36 2.4.1 Behavioral Perceptual Training 30-33 2.4.2 Neurophysiological Aspect of Perceptual Training 33-35 2.4.3 Effects of Variables in Perceptual Training 35-36 2.5 Research Gaps and Research Questions 36-37 2.6 Chapter Summary 37-38 Chapter Three Methodology 38-48 3.1 Introduction 38 3.2 Subjects 38 3.3 Design of Testing Materials 38-40 3.4 Stimuli 40-42 3.4.1 The Speaker 40 3.4.2 Recording Scripts and Techniques 40 3.4.3 Token Sorting 40-41 3.4.4 Trials 41-42 3.5 Design of Training Materials 42-43 3.6 Data Collection 43-46 3.6.1 Day 1 43-45 3.6.2 Day 2 45-46 3.7 Mode of Data Analysis 46 3.8 Chapter Summary 46-48 Chapter Four Results and Discussion 48-68 4.1 Introduction 48 4.2 The Overall Effect of Perceptual Training 48-51 4.3 The Error Patterns under Each Task before and after Training 51-63 4.3.1 Perceptual Assimilation Model before and after Training 51-54 4.3.2 Unbalanced Improvement after Training 54-57 4.3.3 Tokens One and Two in the Identification Task 57-60 4.3.4 Token Pairs One and Two in the Discrimination Task 60-63 4.4 The Transfer of the Training Effect 63-67 4.4.1 The Transfer of the Training Effect in the Identification task 63-65 4.4.2 The Transfer of the Training Effect in the Discrimination task 65-67 4.5 Chapter Summary 67-68 Chapter Five Conclusion 68-73 5.1 Major Findings of the Study 68-69 5.2 Implications of the Study 69-71 5.3 Limitations of the Study 71 5.4 Suggestions for Further Studies 71-73 References 73-79 Appendix Ⅰ 79-82 Appendix Ⅱ 82-84 Appendix Ⅲ 84-85 Appendix Ⅳ 85-87 Appendix Ⅴ 87-88 Appendix Ⅵ 88-89 Appendix Ⅶ 89-90 Acknowledgements 90-92 学位论文评阅及答辩情况表 92 |
