EEG-data for processing auditorily code-switching from L2 German into L1 Russian at nouns and prepositions

This dataset includes the data that are required to conduct the analyses in our submitted paper “Code-switching does not equal code-switching. An ERP-study on different types of switching from L2 German into L1 Russian”. In particular, it includes - data about the participants; - eeg-recordings, preprocessed with eeprobe; - derived data (mean amplitudes) for statistical analysis; - the code for statistical analysis in R; - the sentence material used for the auditory stimuli. Abstract of the submitted paper: So far, ERP studies on code-switching have investigated single-word insertions, usually nouns. However, CS can range from inserting single words to alternating languages for larger segments of discourse and can happen at various syntactic positions. We present results of an ERP-study on German-Russian CS that include either a whole prepositional phrase or only its lexical head noun. First, while CS at N resulted in an N400 and a typical LPC, CS at P resulted in a broad early negativity, followed by a more anterior negativity, and an anterior negativity with a posterior positivity. Only in the last time window (800-1000ms), CS at P resulted in a broad positivity similar to CS at N. Second, unlike CS at N, the processing of N in a switched PP did not elicit an LPC. The clear differences between both types of CS indicate that different psycholinguistic processes take place. Keywords: Code-Switching, Insertion, Alternation, EL island, Word class, ERP, N400, Late Positive Complex, German-Russian, L2本数据集包含了支撑我们已投稿论文《语码转换并非等同的语码切换：一项针对从第二语言（Second Language, L2）德语到第一语言（First Language, L1）俄语的不同切换类型的事件相关电位（Event-Related Potential, ERP）研究》开展分析所需的全部数据。具体涵盖以下内容： - 被试相关数据； - 经eeprobe预处理的脑电图（Electroencephalogram, EEG）记录； - 用于统计分析的衍生数据（平均波幅）； - 用于R语言统计分析的代码； - 听觉刺激所用的语句材料。 已投稿论文摘要： 迄今为止，有关语码转换（Code-switching）的事件相关电位研究多聚焦于单词插入现象，通常以名词为研究对象。但语码转换的表现形式多样，既可以是插入单个词语，也可以在更大的话语片段中交替使用两种语言，且可发生于各类句法位置。本研究呈现了德-俄语码转换的ERP研究结果，其中语码转换的位置或为完整介词短语，或仅为该短语的核心词汇名词。其一，在名词位置发生的语码转换会引发N400与典型的晚正成分（Late Positive Complex, LPC）；而在介词位置发生的语码转换则会引发广泛的早期负波，随后出现更具前侧分布的负波，以及伴随后侧正性成分的前侧负波。仅在最后一个时窗（800-1000ms）中，介词位置的语码转换才会引发与名词位置转换类似的广泛正波。其二，与名词位置的语码转换不同，在被转换的介词短语中处理名词时，并未引发晚正成分。两种语码转换类型间的显著差异表明，二者背后对应的心理语言学加工过程存在区别。 关键词：语码转换、插入、交替、句法孤岛（EL island）、词类、ERP、N400、晚正成分、德-俄语、第二语言（Second Language, L2）