UBC Faculty Research and Publications

When does native language input affect phonetic perception? The precocious case of lexical tone Yeung, Ho Henny; Chen, Ke Heng; Werker, Janet

Abstract

Previous studies have suggested that the perception of vowels and consonants changes from language-universal to language-specific between 6 and 12 months of age. This report suggests that language-specific perception emerges even earlier for lexical tones. Experiment 1 tested English-learners’ perception of Cantonese tones, replicating declines in tone discrimination from 4 to 9 months of age. Experiment 2 tested infants learning non-native versus native tone systems (Mandarin-learners versus Cantonese-learners). All Chinese-learners discriminated the tones, but showed language-specific differences in tone preferences at both ages. Indeed, English-, Mandarin-, and Cantonese-learning 4-month-olds all exhibited distinct preferences. With other work, this shows that language-specific speech perception emerges over a more complex and extended schedule than previously thought: first for lexical stress and tone (

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