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Sinclair, Hermina – Human Development, 1978
Attempts to clarify the meaning of differentiation in the Piagetian concept of object permanence. (BD)
Descriptors: Conservation (Concept), Developmental Stages, Infant Behavior, Object Permanence
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Luo, Yuyan; Baillargeon, Renee; Brueckner, Laura; Munakata, Yuko – Cognition, 2003
This study examined two alternative interpretations of violation-of-expectation findings that young infants can represent hidden objects. Findings indicated that 5-month-olds succeeded in reasoning about the interaction of a visible and a hidden object even though the 2 objects were never simultaneously visible and a 3- or 4-minute delay preceded…
Descriptors: Cognitive Development, Infant Behavior, Infants, Memory
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Diedrich, Frederick J.; Highlands, Tonia M.; Spahr, Kimberly A.; Thelen, Esther; Smith, Linda B. – Journal of Experimental Child Psychology, 2001
Evaluated in three experiments a dynamic systems theory account of perseverative errors on "A-not-B" task. Found that 9-month-olds perseverated when reaching for identical targets, but made nonperseverative responses when reaching in the presence of a highly distinctive B target. Reach direction was jointly determined by target's…
Descriptors: Cognitive Development, Cues, Error Patterns, Infant Behavior
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Mandler, Jean M. – Human Development, 1998
Maintains that Muller and Overton (1998) misrepresent her theory of infant concept formation in infancy, makes corrections to their representation, and notes that her theory was developed in part because of the lack of detailed mechanisms in Piaget's theory to account for concept formation. Argues that Muller and Overton's proposed alternative…
Descriptors: Cognitive Development, Concept Formation, Infant Behavior, Memory