Using Rational Models to Interpret the Results of Experiments on Accent Adaptation

Autor: Maryann Tan, Xin Xie, T. Florian Jaeger
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Frontiers in Psychology, Vol 12 (2021)
Druh dokumentu: article
ISSN: 1664-1078
DOI: 10.3389/fpsyg.2021.676271
Popis: Exposure to unfamiliar non-native speech tends to improve comprehension. One hypothesis holds that listeners adapt to non-native-accented speech through distributional learning—by inferring the statistics of the talker's phonetic cues. Models based on this hypothesis provide a good fit to incremental changes after exposure to atypical native speech. These models have, however, not previously been applied to non-native accents, which typically differ from native speech in many dimensions. Motivated by a seeming failure to replicate a well-replicated finding from accent adaptation, we use ideal observers to test whether our results can be understood solely based on the statistics of the relevant cue distributions in the native- and non-native-accented speech. The simple computational model we use for this purpose can be used predictively by other researchers working on similar questions. All code and data are shared.
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