When learning goes beyond statistics: Infants represent visual sequences in terms of chunks

Cognition
Lauren K Slone, Scott P Johnson

Abstract

Much research has documented infants' sensitivity to statistical regularities in auditory and visual inputs, however the manner in which infants process and represent statistically defined information remains unclear. Two types of models have been proposed to account for this sensitivity: statistical models, which posit that learners represent statistical relations between elements in the input; and chunking models, which posit that learners represent statistically-coherent units of information from the input. Here, we evaluated the fit of these two types of models to behavioral data that we obtained from 8-month-old infants across four visual sequence-learning experiments. Experiments examined infants' representations of two types of structures about which statistical and chunking models make contrasting predictions: illusory sequences (Experiment 1) and embedded sequences (Experiments 2-4). In all four experiments, infants discriminated between high probability sequences and low probability part-sequences, providing strong evidence of learning. Critically, infants also discriminated between high probability sequences and statistically-matched sequences (illusory sequences in Experiment 1, embedded sequences in Experiments 2-3...Continue Reading

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Citations

Dec 14, 2018·Journal of Neurodevelopmental Disorders·Jenny R Saffran
Jul 2, 2020·Cognitive Science·Erin S IsbilenMorten H Christiansen
Jul 3, 2020·Cognition·Ansgar D EndressScott P Johnson
Feb 21, 2021·Science Advances·Simon HeninLucia Melloni
Sep 29, 2018·Infant Behavior & Development·Christina SchonbergScott P Johnson
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May 25, 2021·PLoS Computational Biology·Kristjan Kalm, Dennis Norris
Dec 3, 2021·Infancy : the Official Journal of the International Society on Infant Studies·Julie BertelsArnaud Destrebecqz

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