A network science approach to bilingual code-switching

Abstract

Previous research has shown that the structure of the semantic network can influence language production, such that a word with low clustering coefficient (C) is more easily retrieved than a word with high C. In this study, we used a network science approach to examine whether the network structure accounts for why bilinguals code-switch. We established semantic networks for words in each language, then measured the C for each code-switched word and its translated equivalent. The results showed that words where language is switched have lower C than their translated equivalents in the other language, suggesting that the structures of the lexicons in the two languages play an important role in bilingual code-switching speech.