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ERIC Number: EJ747049
Record Type: Journal
Publication Date: 2005
Pages: 28
Abstractor: Author
ISBN: N/A
ISSN: ISSN-0364-0213
EISSN: N/A
Available Date: N/A
Dissociations in Performance on Novel versus Irregular Items: Single-Route Demonstrations with Input Gain in Localist and Distributed Models
Kello, Christopher T.; Sibley, Daragh E.; Plaut, David C.
Cognitive Science, v29 n4 p627-654 2005
Four pairs of connectionist simulations are presented in which quasi-regular mappings are computed using localist and distributed representations. In each simulation, a control parameter termed input gain was modulated over the only level of representation that mapped inputs to outputs. Input gain caused both localist and distributed models to shift between regularity-based and item-based modes of processing. Performance on irregular items was selectively impaired in the regularity-based modes, whereas performance on novel items was selectively impaired in the item-based modes. Thus, the models exhibited double dissociations without separable processing components. These results are discussed in the context of analogous dissociations found in language domains such as word reading and inflectional morphology.
Lawrence Erlbaum Associates, Inc. 10 Industrial Avenue, Mahwah, NJ 07430. Tel: 800-926-6579; Tel: 201-258-2200; Fax: 201-236-0072; e-mail: journals@erlbaum.com; Web site: https://www.erlbaum.com
Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A
Author Affiliations: N/A