Evidence for Knowledge-Based Category Discrimination in Infancy

@article{citeulike:1817986, abstract = {Two studies examined whether infants' category discrimination in an object-examination task was based solely on an ad hoc analysis of perceptual similarities among the experimental stimuli. In Experiment 1A, 11-month-olds examined four different exemplars of one superordinate category (animals or furniture) twice, followed by a new exemplar of the familiar category and an exemplar of the contrasting category. Group A (N = 39) explored natural-looking toy replicas with low between-category similarity, whereas group B (N = 40) explored artificial-looking toy models with high between-category similarity. Experiment 1B (N = 40) tested a group of 10-month-olds with the same design. Experiment 1C (N = 20) reversed the order of test trials. For Experiment 2 (N = 20), the same artificial-looking toy animals as in Experiment 1 (group B) were used for familiarization), but no category change was introduced at the end of the session. Infants' responses varied systematically only with the presence of a category change, and not with the degree of between-category similarity. This supports the hypothesis that performance was knowledge based.}, author = {Pauen, Sabina }, citeulike-article-id = {1817986}, doi = {10.1111/1467-8624.00454}, journal = {Child Development}, keywords = {category-learning, semantic-development, semantic-organization}, number = {4}, pages = {1016--1033}, posted-at = {2007-10-25 01:52:32}, priority = {2}, title = {Evidence for Knowledge-Based Category Discrimination in Infancy}, url = {http://www.blackwell-synergy.com/doi/abs/10.1111/1467-8624.00454}, volume = {73}, year = {2002} }

TY - JOUR ID - citeulike:1817986 L3 - citeulike-article-id:1817986 TI - Evidence for Knowledge-Based Category Discrimination in Infancy JF - Child Development VL - 73 IS - 4 SP - 1016 EP - 1033 N2 - Two studies examined whether infants' category discrimination in an object-examination task was based solely on an ad hoc analysis of perceptual similarities among the experimental stimuli. In Experiment 1A, 11-month-olds examined four different exemplars of one superordinate category (animals or furniture) twice, followed by a new exemplar of the familiar category and an exemplar of the contrasting category. Group A (N = 39) explored natural-looking toy replicas with low between-category similarity, whereas group B (N = 40) explored artificial-looking toy models with high between-category similarity. Experiment 1B (N = 40) tested a group of 10-month-olds with the same design. Experiment 1C (N = 20) reversed the order of test trials. For Experiment 2 (N = 20), the same artificial-looking toy animals as in Experiment 1 (group B) were used for familiarization), but no category change was introduced at the end of the session. Infants' responses varied systematically only with the presence of a category change, and not with the degree of between-category similarity. This supports the hypothesis that performance was knowledge based. KW - category-learning KW - semantic-development KW - semantic-organization AU - Pauen, Sabina PY - 2002/// UR - http://www.blackwell-synergy.com/doi/abs/10.1111/1467-8624.00454 ER -