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Peer reviewedvan Loosbroek, Erik; Smitsman, Ad. W. – Developmental Psychology, 1990
Infants were tested at 5, 8, and 13 months of age for numerosity perception. Subjects observed displayed figures on a screen moving at constant speed with irregular trajectories and occasional occlusions. Results demonstrated that discrimination of units, and not of characteristic patterns, underlies numerosity perception. (BC)
Descriptors: Foreign Countries, Infants, Longitudinal Studies, Pattern Recognition
