Categorical perception effects induced by category learning. Export

@article{citeulike:5047242, abstract = {The authors report a series of studies designed to determine whether effects similar to those observed in the innate categorical perception of color and phonemes are induced during the learning of simple unidimensional categories and more complex multidimensional ones. In Experiment 1 no evidence was found for such effects when stimuli varied on 1 dimension. Experiments 2 and 3 demonstrated a within-category compression effect but no between category expansion effect for stimuli varying in 2 dimensions. Compression only was also shown in Experiment 4, which used pictures of actual objects. Multidimensional scaling analyses illustrate how within-category compression without expansion was sufficient to produce categorical clustering of items in the similarity space. These analyses also show that learning changed the dimensional structure of similarity space. Results are compared with those from other studies exploring similar phenomena and with neural network simulations.}, author = {Livingston, K. R. and Andrews, J. K. and Harnad, S.}, citeulike-article-id = {5047242}, citeulike-linkout-0 = {http://view.ncbi.nlm.nih.gov/pubmed/9606933}, citeulike-linkout-1 = {http://www.hubmed.org/display.cgi?uids=9606933}, issn = {0278-7393}, journal = {Journal of experimental psychology. Learning, memory, and cognition}, keywords = {acquired\_distinctiveness, categorical\_perception, categorization, compression, comps, learning, similarity}, month = {May}, number = {3}, pages = {732--753}, posted-at = {2009-07-03 16:10:43}, priority = {0}, title = {Categorical perception effects induced by category learning.}, url = {http://view.ncbi.nlm.nih.gov/pubmed/9606933}, volume = {24}, year = {1998} }

TY - JOUR ID - citeulike:5047242 L3 - citeulike-article-id:5047242 N2 - The authors report a series of studies designed to determine whether effects similar to those observed in the innate categorical perception of color and phonemes are induced during the learning of simple unidimensional categories and more complex multidimensional ones. In Experiment 1 no evidence was found for such effects when stimuli varied on 1 dimension. Experiments 2 and 3 demonstrated a within-category compression effect but no between category expansion effect for stimuli varying in 2 dimensions. Compression only was also shown in Experiment 4, which used pictures of actual objects. Multidimensional scaling analyses illustrate how within-category compression without expansion was sufficient to produce categorical clustering of items in the similarity space. These analyses also show that learning changed the dimensional structure of similarity space. Results are compared with those from other studies exploring similar phenomena and with neural network simulations. IS - 3 JF - Journal of experimental psychology. Learning, memory, and cognition SN - 0278-7393 EP - 753 TI - Categorical perception effects induced by category learning. VL - 24 SP - 732 KW - acquired_distinctiveness KW - categorical_perception KW - categorization KW - compression KW - comps KW - learning KW - similarity AU - Livingston, KR AU - Andrews, JK AU - Harnad, S PY - 1998/05// UR - http://view.ncbi.nlm.nih.gov/pubmed/9606933 ER -