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Baillargeon, Renee – Developmental Psychology, 1987
Three experiments test object permanenece in 3 1/2- and 4 1/2-month-old infants, and use an impossible-possible-habituation event format. The 4 1/2-month-olds, and the 3 1/2-month-olds who were fast habituators, look reliably longer at the impossible than at the possible event. Results seriously question Piaget's (1954) claims regarding the age at…
Descriptors: Cognitive Ability, Cognitive Development, Cognitive Processes, Habituation
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Gopnik, Alison; Meltzoff, Andrew – Child Development, 1987
Changes in children's categorization behavior between 15 and 21 months of age and the relation of these changes to developments in language, object permanence, and means-end understanding are reported. (PCB)
Descriptors: Behavior Change, Classification, Cognitive Development, Infant Behavior
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Kelly, Charleen A.; Dale, Philip S. – Journal of Speech and Hearing Research, 1989
The relationship between early language and cognition was studied in 20 children between 1 and 2 years of age. Four cognitive areas were tested: object permanence, means-end, play, and imitation. Results indicated that specific cognitive skills seem temporarily associated with some linguistic abilities, although attainment of skills can be…
Descriptors: Cognitive Development, Concept Formation, Developmental Stages, Imitation
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Goldman-Rakic, Patricia S. – Child Development, 1987
Recent studies on the biological development of the prefrontal cortex in rhesus monkeys are reviewed. These studies have elucidated the basic neural circuitry underlying the delayed-response function in adult nonhuman primates and suggest that a critical mass of cortical synapses is important for the emergence of this cognitive function. (BN)
Descriptors: Anatomy, Cognitive Development, Literature Reviews, Neurological Organization
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Schacter, Daniel L.; And Others – Child Development, 1986
Reports two experiments in which eight patients with organic memory disorders exhibited a pattern of search behavior that resembled mnemonmic precedence--the ability to retrieve an object at an initial location, but not at a new location. (HOD)
Descriptors: Age Differences, Behavior Patterns, Cognitive Development, Discovery Processes
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Wishart, Jennifer G. – Child Development, 1986
Investigates whether 6- to 12-month-old infants' exposure to the successful search behavior of a sibling in two object-concept tasks would enhance infants' subsequent performance on these tasks. (HOD)
Descriptors: Child Development, Cognitive Ability, Cognitive Development, Cognitive Processes
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Gopnik, Alison; Meltzoff, Andrew N. – Child Development, 1986
Compares two types of semantic development (the acquisition of disappearance words and success-failure words) to performance on two types of cognitive tasks (object-permanence and means-ends tasks) among infants. (HOD)
Descriptors: Child Development, Cognitive Development, Concept Formation, Developmental Stages