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ERIC Number: EJ1002974
Record Type: Journal
Publication Date: 2012
Pages: 16
Abstractor: As Provided
Reference Count: 22
ISSN: ISSN-0033-2933
A Connectionist Model of Stimulus Class Formation with a Yes/No Procedure and Compound Stimuli
Tovar, Angel E.; Chavez, Alvaro Torres
Psychological Record, v62 n4 p747-762 Fall 2012
We analyzed stimulus class formation in a human study and in a connectionist model (CM) with a yes/no procedure, using compound stimuli. In the human study, the participants were six female undergraduate students; the CM was a feed-forward back-propagation network. Two 3-member stimulus classes were trained with a similar procedure in both the human participants and the model. During training, the compound stimuli A1B1, A2B2, B1C1, B2C2 were associated with the "yes" response, and A1B2, A2B1, B1C2, B2C1 were associated with the "no" response. During testing, we probe the emergence of the yes and no responses in the presence of new compound stimuli (A1C1, A2C2, A1C2, A2C1). Four participants and five out of six runs of the CM exhibited stimulus class formation. These results show the usefulness of the yes/no procedure for simulating stimulus class formation in a CM in contrast with the models inspired in matching-to-sample procedures. (Contains 5 tables and 5 figures.)
Southern Illinois University Carbondale. Mailcode 4609, Rehabilitation Institute, Carbondale, IL 62901-4609. Tel: 618-536-7704; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Evaluative
Education Level: Higher Education; Postsecondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A