This study investigated whether Japanese listeners learning English employ two types of lexical information (word frequency and neighborhood density) when they recognize English words. English words recorded by a native speaker of English and a native speaker of Japanese were presented to Japanese university students in a noise condition. The results of word recognition scores showed that Japanese listeners employed both lexical and pre-lexical levels of information in English word recognition. They were sensitive to both probabilistic phonotactics (bottom-up acoustic information) and word frequency (lexical information). A strong correlation between probabilistic phonotactics and neighborhood density still predict Japanese listeners are influenced by neighborhood density in English word recognition.