Abstract
Deferred imitation tasks have shown that manipulations at encoding can enhance infant learning and memory performance within an age, suggesting that brain maturation alone cannot fully account for all developmental changes in early memory abilities. The present study investigated whether changes in the focus of attention during learning might contribute to improving memory abilities during infancy. Infants aged 6, 9, and 12 months, and an adult comparison group, watched a video of a puppet imitation demonstration while visual behavior was recorded on an eye tracker. Overall, infants spent less time attending to the video than adults, and distributed their gaze more equally across the demonstrator and puppet stimulus. In contrast, adults directed their gaze primarily to the puppet. When infants were tested for their behavioral recall of the target actions, “imitators” were shown to have increased attention to the person and decreased attention to the background compared to “non-imitators.” These results suggest that attention during learning is related to memory outcome and that changes in attention may be one mechanism by which manipulations to the learning event may enhance infant recall memory. © 2013 The Authors. Developmental Psychobiology published by Wiley Periodicals, Inc.
Highlights
Very young infants can encode, store and retrieve information, there are considerable developmental changes in learning and memory abilities across the infancy period
Given the difference in overall attention to the experimental video, proportion data was used to assess the overall spread of attention to each areas of interest (AOI) during learning
To determine whether attention to the experimental video differed across age, a two-way (Age  AOI) mixed design ANOVA was conducted on the proportion of fixations
Summary
Very young infants can encode, store and retrieve information, there are considerable developmental changes in learning and memory abilities across the infancy period (for reviews, see Hayne, 2004; Jones & Herbert, 2006). Older infants have been shown to encode information faster (e.g., Barr, Dowden, & Hayne, 1996; Hill, Borovsky, & RoveeCollier, 1988; Rose, 1983), retain information over a longer duration (e.g., Barr & Hayne, 2000; Herbert, Gross, & Hayne, 2006; Morgan & Hayne, 2006) and Developmental Psychobiology published by Wiley Periodicals, Inc. reproduce longer multi-step sequences from memory (Barr et al, 1996; Kressley-Mba, Lurg, & Knopf, 2005) than younger infants.
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