Making sense of polysemy relations in first and second language speakers of English

The aim of this study is to compare priming effects for polysemous word senses among English first language (L1) and advanced second language (L2) speakers in order to better understand the development of the mental lexicon. Using polysemy values from WordNet, a lexical decision task was designed with three different target word conditions: dominant polysemy (i.e., closely related senses), subordinate polysemy (i.e., distantly related senses), and unrelated words. Participants first saw a prime word and then selected whether a subsequent target word was a valid English word or not. For example, SURVEY was followed by STUDY (dominant polsysemy) or VIEW (subordinate polysemy) or FLASH (unrelated) or SMOO (nonword). Forty-one L1 speakers and 45 advanced L2 speakers each completed 120 decisions. Results from linear mixed effects models suggest dominant senses were responded to significantly faster than unrelated senses (t = ？3.119, p = .002, marginal R2 = .066) for L1 participants, but there were no other significant differences among word conditions. No significant priming effects were found for L2 participants. These results suggest that, unlike other lexical relations, advanced L2 speakers do not form similar connections in the bilingual lexicon when compared to L1 speakers