L33 Psych 321 Lecture Notes - Lecture 13: 5 Fingers, Approximate Number System, Number Sense
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Method: test 1+1 (1 vs. 2) 2-(cid:883) (cid:523)(cid:883) vs. (cid:884)(cid:524) (cid:883)+(cid:883) (cid:523)(cid:884) vs. (cid:885)(cid:524) also held for incremented outcomes (1+1 = 2 vs. 3(cid:524) but infants were insensitive to comparisons involving quantities equal or greater than 4. Results: infants exposed to impossible event longer: longer gaze. Conclusion: infants do have some type of understanding of numerosity. (only up to 3 objects) note that several models have been proposed to account for this finding. Learning to count is much harder than learning color. Results: virtually all children answer display # 1 correctly, but almost none can answer display 2 correctly until 3. 5 years. Some problems correct (small #s) they did so by simple recognition not. Results: younger children who know how to properly count items, could not use counting to solve this task. Even among those children who could get counting. For larger #s a random # of animals were grabbed.
