L1 Lemma Mediation in Form-Meaning Mapping in Acquisition of L2 Mental Lexicon
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Abstract
A word consists of form and meaning and the mapping of lexical form to meaning is important in L2 vocabulary acquisition. Psycholinguistic research suggests that L2 words are learned through the mediation of L1. This study investigates this assumption more specifically by proposing that the semantic specification of L2 lexical forms is mapped to existing concepts in L1. Two experiments were conducted to examine acquisition of English word pairs by Korean L2 learners. Experiment 1 assessed the degree of semantic relatedness and experiment 2 assessed whether the word pairs were semantically related. Word pairs sharing the same L1 translation equivalents showed higher rating scores and faster reaction time than those with different translation: Strong evidence was found for L1 meaning presence in L2 lexical entries. In addition, noun pairs were performed better than verb pairs and advanced learners did better than intermediate learners. We also discuss the frequency and length effect in L2 word production and the pedagogical implications of lexical development and vocabulary teaching.
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