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Fine-grained variation in caregivers’ /s/ predicts their infants’ /s/ categorya
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| 102 |
Effects of the distribution of acoustic cues on infants' perception of sibilants
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Abstract:
A current theoretical view proposes that infants converge on the speech categories of their native language by attending to frequency distributions that occur in the acoustic input. To date, the only empirical support for this statistical learning hypothesis comes from studies where a single, salient dimension was manipulated. Additional evidence is sought here, by introducing a less salient pair of categories supported by multiple cues. We exposed English-learning infants to a multi-cue bidimensional grid between retroflex and alveolopalatal sibilants in prevocalic position. This contrast is substantially more difficult according to previous cross-linguistic and perceptual research, and its perception is driven by cues in both the consonantal and the following vowel portions. Infants heard one of two distributions (flat, or with two peaks), and were tested with sounds varying along only one dimension. Infants' responses differed depending on the familiarization distribution, and their performance was equally good for the vocalic and the frication dimension, lending some support to the statistical hypothesis even in this harder learning situation. However, learning was restricted to the retroflex category, and a control experiment showed that lack of learning for the alveolopalatal category was not due to the presence of a competing category. Thus, these results contribute fundamental evidence on the extent and limitations of the statistical hypothesis as an explanation for infants' perceptual tuning.
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Article
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URL: https://doi.org/10.1016/j.wocn.2011.02.004
http://www.ncbi.nlm.nih.gov/pubmed/21804656
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3145420
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| 103 |
Learning classes of sounds in infancy
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In: University of Pennsylvania Working Papers in Linguistics (2011)
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| 104 |
Phonetic enhancement of sibilants in infant-directed speech
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| 106 |
Individual variation in infant speech processing: Implications for language acquisition theories
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In: Theses and Dissertations Available from ProQuest (2009)
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Why cross-linguistic frequency cannot be equated with ease of acquisition in phonology
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In: University of Pennsylvania Working Papers in Linguistics (2008)
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