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    Modeling infant speech sound discrimination using simple associative networks

    Schafer, G. and Mareschal, Denis (2001) Modeling infant speech sound discrimination using simple associative networks. Infancy 2 (1), pp. 7-28. ISSN 1525-0008.

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    Abstract

    Infants' responses in speech sound discrimination tasks can be nonmonotonic over time. Stager and Werker (1997) reported such data in a bimodal habituation task. In this task, 8-month-old infants were capable of discriminations that involved minimal contrast pairs, whereas 14-month-old infants were not It was argued that the older infants' attenuated performance was linked to their processing of the stimuli for meaning. The authors suggested that these data are diagnostic of a qualitative shift in infant cognition. We describe an associative connectionist model showing a similar decrement in discrimination without any qualitative shift in processing. The model suggests that responses to phonemic contrasts may be a nonmonotonic function of experience with language. The implications of this idea are discussed. The model also provides a formal framework fer studying habituation-dishabituation behaviors in infancy.

    Metadata

    Item Type: Article
    School: Birkbeck Schools and Departments > School of Science > Psychological Sciences
    Research Centre: Brain and Cognitive Development, Centre for (CBCD)
    Depositing User: Administrator
    Date Deposited: 01 Aug 2017 14:48
    Last Modified: 01 Aug 2017 14:48
    URI: http://eprints.bbk.ac.uk/id/eprint/19259

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