Clements and Perner (Cognitive Development, 9 (1994), 377±397) reported that children show understanding of a story character's belief in their anticipatory looking responses before they show this in their answers to test questions. According to Clements and Perner the anticipatory looking responses provide evidence of implicit understanding of belief. This paper examines the possibility that the anticipatory looking measure is indicative of (a) children using a seeing = knowing rule, i.e. children linking not seeing with ignorance rather than a sensitivity to belief, or (b) a tendency to associate the protagonist with the left-hand container. Thirty-two children aged between 2 years 11 months and 4 years were told a false belief story similar to that used in Clements and Perner (1994) except that three containers were used instead of two. The protagonist first looks inside the middle box but then puts the object in the left-hand box. In his absence, a second character moves the object unexpectedly to the right-hand box. If children's anticipatory looking was based on sensitivity to belief then they should have looked clearly to the left-hand box. If it was based on an association bias or sensitivity to the character not knowing then they should have looked equally to the left-hand and middle boxes. The results were consistent with the former prediction suggesting that children's anticipatory looking responses may indeed be governed by an implicit sensitivity to belief.
We presented children aged 6, 8, and 10 years with a video and then an audio tape about a dog named Mick. Some information was repeated in the two sources and some was unique to one source. We examined: (a) children's hit rate for remembering whether events occurred and their tendency to make false alarms, (b) their memory for the context in which events occurred (source monitoring), (c) their certainty about hits, false alarms, and source, and (d) whether working memory and inhibition were related to hits, false alarms, and source monitoring. The certainty ratings revealed deficits in children's understanding of when they had erred on source questions and of when they had made false alarms. In addition, inhibitory ability accounted for unique variance in the ability to avoid false alarms and in some kinds of source monitoring but not hits. In contrast, working memory tended to correlate with all forms of memory including hits.
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