Elsevier, Infant Behavior & Development, 4(33), p. 685-688
DOI: 10.1016/j.infbeh.2010.09.004
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After a brief familiarization period to either one or two toys 5-month-olds gave a clear preference for perceptually novel displays, suggesting that replicable findings of greater looking at an unexpected arithmetic outcome in addition/subtraction experiments cannot easily be attributed to simple familiarity preferences.