Metacognitive abilities are considered as a hallmark of advanced human cognition. Existing empirical studies have exclusively focused on populations from Western and industrialized societies. Little is known about young children’s metacognitive abilities in other societal and cultural contexts. Here we tested 4-year-old Yucatec Mayan by adopting a metacognitive task in which children’s explicit assessment of their own knowledge states about the hidden content of a container and their informing judgments were assessed. Similar to previous studies, we found that Yucatec Mayan (...) children overestimated their knowledge states in the explicit metacognitive task. However, in contrast with studies on Western children, we did not find the facilitating effect of the implicit informing task over the explicit task. These findings suggest that the early development of metacognition combines universal and culture-sensitive features. (shrink)

Prior work shows that children selectively learn from credible speakers. Yet little is known how they treat information from non-credible speakers. This research examined to what extent and under what conditions children may or may not learn from problematic sources. In three studies, we found that children displayed trust toward previously inaccurate speakers. Children were equally likely to extend labels from previously accurate and inaccurate speakers to novel objects. Moreover, they expected third parties to share labels provided by previously inaccurate (...) speakers. Only when there was clear evidence that the speakers' information was wrong, did young children reject the label. Together, the findings provide evidence that young children do not completely ignore the labels supplied by non-credible speakers unless there is strong reason to do so. (shrink)

Three experiments with preschool- and young school-aged children (N = 75 and 53) explored the kinds of relations children detect in samples of instances (descriptive problem) and how they generalize those relations to new instances (inferential problem). Each experiment initially presented a perfect biconditional relation between two features (e.g., all and only frogs are blue). Additional examples undermined one of the component conditional relations (not all frogs are blue) but supported another (only frogs are blue). Preschool-aged children did not distinguish (...) between supported and undermined relations. Older children did show the distinction, at least when the test instances were clearly drawn from the same population as the training instances. Results suggest that younger children’s difficulties may stem from the demands of using imperfect correlations for predictions. Older children seemed sensitive to the inferential problem of using samples to make predictions about populations. (shrink)

The paper offers a critical appreciation of sand in the Japanese tradition of karesansui 枯山水gardens. At first, sand is approached from a phenomenological standpoint, then described in relation to the Daoist ideals of “blandness” (dan 淡) and its original function in Shinto shrines. The following sections draw an East-West comparison between the sand garden at Ginkaku-ji 銀閣寺 and the sand sculptures by the Basque artist Andoni Bastarrika, and between the sand garden at Shisen-dō 詩仙堂 and the Renaissance garden at Villa (...) di Castello. The main purpose is to illustrate the philosophical significance of sand in respect to the aesthetic expression of such Buddhist-influenced notions as ku 空 (“emptiness”), yuge 遊戲(“play”), kire-tsuzuki 切れ続き(“cut-continuance” or “dis/continuity”) and the dialectic of conventional and ultimate reality. (shrink)