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Knudsen, Birgit; Liszkowski, Ulf – Infancy, 2012
This study employed a new "anticipatory intervening" paradigm to tease apart false belief and ignorance-based interpretations of 18-month-olds' helpful informing. We investigated in three experiments whether 18-month-old infants inform an adult selectively about one of the two locations depending on the adult's belief about which of the two…
Descriptors: Theory of Mind, Infants, Toys, Cognitive Development
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Sommerville, Jessica A.; Woodward, Amanda L. – Infancy, 2005
Current work has yielded differential findings regarding infants' ability to perceptually detect the causal structure of a means-end support sequence. Resolving this debate has important implications for perception-action dissociations in this domain of object knowledge. In Study 1, 12-month-old infants' ability to perceive the causal structure of…
Descriptors: Models, Infants, Perceptual Development, Habituation
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Laplante, David P.; Zelazo, Philip R.; Brunet, Alain; King, Suzanne – Infancy, 2007
Toddler toy play evolves in a predictable manner and provides a valid, nonverbal measure of cognitive function unbiased by social behaviors. Research on prenatal maternal stress (PNMS) indicates that exposure to stress in utero results in developmental deficits. We hypothesized that children exposed to high objective PNMS from a natural disaster…
Descriptors: Cognitive Development, Language Acquisition, Play, Natural Disasters