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| Research article summary (published 29 Nov 2002): |
Why do children learn to say "Broke"? A model of learning the past tense without feedback.
Full Abstract
Learning the English past tense is characterized by a U-shaped learning function for the irregular verbs. Existing cognitive models often rely on a sudden increase in vocabulary, a high token-frequency of regular verbs, and complicated schemes of feedback in order to model this phenomenon. All these assumptions are at odds with empirical data. In this paper a hybrid ACT-R model is presented that shows U-shaped learning without direct feedback, changes in vocabulary, or unrealistically high rates of regular verbs. The model is capable of learning the default rule, even if regular forms are infrequent. It can also help explore the question of why there is a distinction between regular and irregular verbs in the first place, by examining the costs and benefits of both types of verbs.
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Author information
Author/s: Taatgen, Niels A (NA); Anderson, John R (JR);
Affiliation: Department of Artificial Intelligence, University of Groningen, Grote Kruisstraat 2/1, 9712 TS Groningen, The Netherlands. niels@ai.rug.nl
Journal and publication information
Publication Type: Journal Article; Research Support, Non-U.S. Gov't
Journal: Cognition (Cognition), published in Netherlands. (Language: eng)
Reference: 2002-Dec; vol 86 (issue 2) : pp 123-55
Dates: Created 2002/11/18; Completed 2003/03/03; Revised 2006/11/15;
PMID: 12435534, status: MEDLINE (last retrieval date: 11/6/2008)
Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.
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