第2言語の発語における単語の検索過程

Abstract

On the basis of the bilingual dual coding theory, two experiments were carried out to investigate the retrieval processes of second language (L2) words in L2 learners. In Experiment 1, three models of word-memory were constructed in relation to encoding processes of L2 words, and three hypotheses of retrieval routes of L2 words developed from the three models were evaluated. In Experiment 2, it was examined by using the results of Experiment 1 whether the retrieval routes of L2 words were different in relation to levels of L2 proficiency. Both experiments adopted response times to 4 tasks as a measure, namely, translating first language (L1) word into L2 word, picture naming in L2 word, reading Ll word, and picture naming in Li word. The results of Experiment 1 showed that patterns of response times were consistent with three hypotheses. The results of Experiment 2 showed that the retrieval processes of L2 words in an advanced class were different from those in a beginning and an intermediate class.