Numerosity discrimination in infants: Evidence for two systems of representations

摘要: Two experiments investigated numerosity discrimination in 6-month-old infants, comparing their performance on both large numbers (4 vs. 8 elements) and small (2 4 with total filled area contour length controlled for. These studies provide the first direct comparison between of infants same methodology, type stimuli, continuous variable controls. Results showed that succeeded discriminating from elements but failed to discriminate 2 elements, providing evidence for existence two systems number representations infancy.