Categorical Perception Effects Induced by Category Learning.
Categorical Perception Effects Induced by Category Learning.
We report a series of studies designed to determine whether effects similar to those observed in the innate categorical perception (CP) of color and phonemes are induced during category learning. In Experiment 1 no evidence is found for such effects when stimuli vary unidimensionally. Experiments 2 and 3 demonstrate a within-category compression effect but no between-category separation effect for stimuli varying in two dimensions. Compression only is also shown in Experiment 4, which uses pictures of actual objects. MDS analyses of these data illustrate how within-category compression effects without separation effects are sufficient for categorization, and also show that learning changes the dimensional structure of similarity space. Results are compared with those from other studies exploring similar phenomena, and with neural network simulations, and the paper closes with suggestions for the direction of future research on these phenomena.
categorical perception, perceptual learning, Whorf Hypothesis, symbol grounding, color perception, phoneme perception, similarity
732-753
Livingston, Kenneth
dc6b7ade-d901-4c3a-a24c-8c36c810e09a
Andrews, Janet
34f28e35-c733-41e3-ae9f-9dae3211e518
Harnad, Stevan
442ee520-71a1-4283-8e01-106693487d8b
1998
Livingston, Kenneth
dc6b7ade-d901-4c3a-a24c-8c36c810e09a
Andrews, Janet
34f28e35-c733-41e3-ae9f-9dae3211e518
Harnad, Stevan
442ee520-71a1-4283-8e01-106693487d8b
Livingston, Kenneth, Andrews, Janet and Harnad, Stevan
(1998)
Categorical Perception Effects Induced by Category Learning.
Journal of Experimental Psychology: Learning, Memory and Cognition, 24 (3), .
Abstract
We report a series of studies designed to determine whether effects similar to those observed in the innate categorical perception (CP) of color and phonemes are induced during category learning. In Experiment 1 no evidence is found for such effects when stimuli vary unidimensionally. Experiments 2 and 3 demonstrate a within-category compression effect but no between-category separation effect for stimuli varying in two dimensions. Compression only is also shown in Experiment 4, which uses pictures of actual objects. MDS analyses of these data illustrate how within-category compression effects without separation effects are sufficient for categorization, and also show that learning changes the dimensional structure of similarity space. Results are compared with those from other studies exploring similar phenomena, and with neural network simulations, and the paper closes with suggestions for the direction of future research on these phenomena.
Text
harnad98.cp.pdf
- Other
More information
Published date: 1998
Keywords:
categorical perception, perceptual learning, Whorf Hypothesis, symbol grounding, color perception, phoneme perception, similarity
Organisations:
Web & Internet Science
Identifiers
Local EPrints ID: 252632
URI: http://eprints.soton.ac.uk/id/eprint/252632
PURE UUID: 8cba6bbf-20ea-4a35-8ffc-da8b231068c9
Catalogue record
Date deposited: 23 Feb 2000
Last modified: 15 Mar 2024 02:48
Export record
Contributors
Author:
Kenneth Livingston
Author:
Janet Andrews
Author:
Stevan Harnad
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics