Renée Baillargeon studied infant cognition, including responses to an actor with a false belief. In the box-location experiment, infants observed information that changed what the actor could know and then viewed a test reach. Looking-time differences supply behavioral evidence to interpret alongside competing accounts of expectation and task structure. [ref]
Do 15-month-old infants understand false beliefs? by Kristine H. Onishi and Renée Baillargeon. 2005, true- and false-belief induction and test reaches
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