二语互动环境下重铸有效性问题的内在机制研究

摘要

The effectiveness of recast, the most commonly used implicit negative feedback in the context of second language interaction, has long been a controversial issue, scholars today remain divided. However, it is unanimously agreed that the target informationprovided by recast has more strength than that bypositive feedback from theperspective ofpsychology. Thispaper explores the mechanism underlying the issue of the effectiveness of recast, based on thepsychological research on attention and from the neurobiologicalperspective on the critical role of nucleus reticularis thalami (NRT) in the informationprocessing and concludes that it is equivalent to attention mechanism.%重铸作为二语互动环境下最常用的一种内隐式否定性反馈，其有效性问题一直是受学界探究、争议的焦点。但以重铸方式提供的目标语信息从心理学角度看要比肯定性反馈所提供的目标语信息更具优势，这点却是公认的看法。本研究拟借助于心理学有关注意力机制研究成果，并从神经生物学研究视角，通过解读脑结构组织代表——丘脑网状核在信息加工过程中的核心作用，得出结论：重铸有效性问题的内在机制等同于注意力机制。