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Direct linkAgrillo, Christian; Piffer, Laura; Bisazza, Angelo – Cognition, 2011
In quantity discrimination tasks, adults, infants and animals have been sometimes observed to process number only after all continuous variables, such as area or density, have been controlled for. This has been taken as evidence that processing number may be more cognitively demanding than processing continuous variables. We tested this hypothesis…
Descriptors: Animals, Discrimination Learning, Hypothesis Testing, Visual Stimuli
Peer reviewedXu, Fei; Spelke, Elizabeth S. – Cognition, 2000
Two experiments examined 6-month-olds' ability to discriminate between visual displays of various number of dots varying in size and position, and with controls for other extraneous variables. Findings indicated that infants could discriminate between large sets on the basis of numerosity if they differed by a large ratio (8 versus 16, but not 8…
Descriptors: Discrimination Learning, Habituation, Infant Behavior, Infants
