Factors affecting talker adaptation in a second language

Cutler, A., Burchfield, L. A., & Antoniou, M. (2018). Factors affecting talker adaptation in a second language. In J. Epps, J. Wolfe, J. Smith, & C. Jones (Eds.), Proceedings of the 17th Australasian International Conference on Speech Science and Technology (pp. 33-36).
Listeners adapt rapidly to previously unheard talkers by adjusting phoneme categories using lexical knowledge, in a process termed lexically-guided perceptual learning. Although this is firmly established for listening in the native language (L1), perceptual flexibility in second languages (L2) is as yet less well understood. We report two experiments examining L1 and L2 perceptual learning, the first in Mandarin-English late bilinguals, the second in Australian learners of Mandarin. Both studies showed stronger learning in L1; in L2, however, learning appeared for the English-L1 group but not for the Mandarin-L1 group. Phonological mapping differences from the L1 to the L2 are suggested as the reason for this result.
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