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Skewing the evidence: The effect of input structure on child and adult learning of lexically-based patterns in an artificial language

Wonnacott, E; Brown, H; Nation, K; (2017) Skewing the evidence: The effect of input structure on child and adult learning of lexically-based patterns in an artificial language. Journal of Memory and Language , 95 pp. 36-48. 10.1016/j.jml.2017.01.005. Green open access

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Abstract

Successful language acquisition requires both generalization and lexically based learning. Previous research suggests that this is achieved, at least in part, by tracking distributional statistics at and above the level of lexical items. We explored this learning using a semi-artificial language learning paradigm with 6-year-olds and adults, looking at learning of co-occurrence relationships between (meaningless) particles and English nouns. Both age groups showed stronger lexical learning (and less generalization) given “skewed” languages where a majority particle co-occurred with most nouns. In addition, adults, but not children, were affected by overall lexicality, showing weaker lexical learning (more generalization) when some input nouns were seen to alternate (i.e. occur with both particles). The results suggest that restricting generalization is affected by distributional statistics above the level of words/bigrams. Findings are discussed within the framework offered by models capturing generalization as rational inference, namely hierarchical-Bayesian and simplicity-based models.

Type: Article
Title: Skewing the evidence: The effect of input structure on child and adult learning of lexically-based patterns in an artificial language
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.jml.2017.01.005
Publisher version: https://doi.org/10.1016/j.jml.2017.01.005
Language: English
Additional information: © 2017 The Authors. Published by Elsevier Inc. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
Keywords: Language acquisition; Statistical learning; Overgeneralization
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences > Language and Cognition
URI: https://discovery.ucl.ac.uk/id/eprint/1454892
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