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工作记忆与熟练度对晚期汉—英二语者句法加工的影响—来自ERP的证据

发布时间:2018-06-06 16:42

  本文选题:二语句法加工 + 二语熟练度 ; 参考:《上海师范大学》2014年硕士论文


【摘要】:本论文以熟练度不同且阅读广度不同的汉-英二语者作为被试,采用事件相关电位(ERPs)技术,结合行为数据结果,探讨了二语工作记忆和二语熟练度对二语句法加工的影响。研宄一探讨了不同熟练度的汉-英二语者的二语阅读广度暨工作记忆容量的差异与二语熟练度的关系。研宄二将高、中等熟练度二语者区分高、低阅读广度,通过对英语句子主谓一致性违例与否的判断任务,考察了工作容量差异对二语句法加工的影响。研宄三进一步控制研宄二的实验材料,区分主谓一致性核心判断之间和核心判断以外的工作记忆负荷对二语句法加工的影 结果发现:二语者的工作记忆容量存在个体差异,而且成倒U型分布趋势,并受到二语熟练度水平的影响,表现为二语熟练度水平高的二语者的阅读广度成绩高于低等熟练度的二语者;当二语熟练度相同(均为中等熟练度)时,工作记忆容量对于二语句法加工的速度有着极其显著的影响;当工作记忆容量得到控制时(均为高容量者),二语熟练度对于正确率有显著影响;高通达的英语主谓一致性违例判断可诱发高、中等熟练度汉-英二语者出现三个效应P200, LAN (左前额负波),P600; P200的诱发机制可能与二语者对实验材料不熟悉有关,也可能和二语者的母语背景有关,其内部机制尚且不明;LAN作为早期自动化加工过程更多的受到工作记忆负荷的影响,表现为高工作记忆负荷会诱发更为显著的LAN效应;而对于再分析过程的P600成分,工作记忆的影响比熟练度的影响更大,,表现为P600成分的波峰和潜伏期均受到工作记忆容量和工作记忆负荷的显著影响。
[Abstract]:In this study, the effects of working memory and proficiency in second language on the processing of second sentence were investigated by using event-related potentials (ERPs) technique and behavioral data. The subjects were Chinese-English second language learners with different proficiency and different reading span. The first study explored the relationship between L2 reading span and working memory capacity and L2 proficiency. The second study classifies the high and middle proficiency L2 learners into high and low reading span, and examines the effect of work capacity difference on the processing of two-sentence method through the task of judging whether the consistency of subject and predicate in English sentences has been violated or not. Study 3 further controls the experimental materials of study 2, distinguishes between the core judgment of subject-predicate consistency and the working memory load other than the core judgment. The results show that there are individual differences in the working memory capacity of the second language. Moreover, the distribution trend of inverted U type is influenced by the proficiency level of second language, which shows that the second language learners with high second language proficiency level have higher reading span scores than those with lower proficiency level. When the second language proficiency is the same (both of them are medium proficiency), the working memory capacity has an extremely significant effect on the processing speed of the second sentence method. When the working memory capacity was controlled, the second language proficiency had a significant effect on the accuracy rate. There are three effects of P200 in middle proficiency Chinese / English bilinguals. The evoked mechanism of LAN (left forehead negative wave P600; P200) may be related to the L2's unfamiliar with the experimental materials or the background of the L2's mother tongue. The internal mechanism of LAN is still unknown. As an early process of automation, LAN is more affected by working memory load, which can induce more significant LAN effect, but for the P600 component of reanalysis process, higher working memory load can induce more significant LAN effect. The influence of working memory was greater than that of proficiency. The peak and latency of P600 were significantly affected by working memory capacity and working memory load.
【学位授予单位】:上海师范大学
【学位级别】:硕士
【学位授予年份】:2014
【分类号】:B842.5

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