明白および曖昧な英語の音節境界において母語の音素配列生起制限が単語分節に与える影響

抄録

This study examined whether native-language (L1) phonotactic constraints affect second-language (L2) speech segmentation and, if so, whether L2 proficiency influences word segmentation strategy. L2 speakers at different English proficiency levels and native English speakers were instructed to spot consonant–vowel (CV) words (e.g., pea) and consonant–vowel–consonant (CVC) words (e.g., peak) in bisyllabic nonwords. All groups significantly missed CV targets in the nonwords with clear boundaries that leave illegal residue syllables. Native Japanese speakers did not use L1 phonotactics to segment L2 words but syllabified them while being affected by possible-word constraints.