Please use this identifier to cite or link to this item: https://hdl.handle.net/1822/52457

TitleAssociative symmetry by pigeons after few-exemplar training
Author(s)Velasco, Saulo M.
Huziwara, Edson M.
Machado, Armando
Tomanari, Gerson Yukio
KeywordsAssociative
Symmetry
Stimulus
Equivalence
Exemplar
Training
Two-alternative
Matching
To-sample
Reinforced
Tests
Key
Peck
Pigeons
Associative symmetry
Exemplar training
Key peck
Reinforced tests
Stimulus equivalence
Two-alternative matching-to- sample
Issue dateNov-2010
PublisherSociety for the Experimental Analysis of Behavior (SEAB)
JournalJournal of the Experimental Analysis of Behavior
Abstract(s)The present experiment investigated whether pigeons can show associative symmetry on a two-alternative matching to-sample procedure The procedure consisted of a within subject sequence of training and testing with reinforcement and It provided (a) exemplars of symmetrical responding and (b) all prerequisite discriminations among test samples and comparisons After pigeons had learned two arbitrary matching tasks (A B and C D) they were given a reinforced symmetry test for half of the baseline relations (B1-A1 and D1-C1) To control for the effects of reinforcement during testing two novel nonsymmetrical responses were concurrently reinforced using the other baseline stimuli (D2-A2 and B2-C2) Pigeons matched at chance on both types of relations thus indicating no evidence for symmetry These symmetrical and nonsymmetrical relations were then directly trained in order to provide exemplars of symmetry and all prerequisite discriminations for a second test The symmetrical test relations were now B2-A2 and D2-C2 and the nonsymmetrical relations were D1-A1 and B1-C1 On this test 1 pigeon showed clear evidence of symmetry 2 pigeons showed weak evidence and 1 pigeon showed no evidence The previous training of all prerequisite discriminations among stimuli and the within subject control for testing with reinforcement seem to have set favorable conditions for the emergence of symmetry in nonhumans However the variability across subjects shows that methodological variables still remain to be controlled
TypeArticle
URIhttps://hdl.handle.net/1822/52457
DOI10.1901/jeab.2010.94-283
ISSN0022-5002
Peer-Reviewedyes
AccessRestricted access (Author)
Appears in Collections:CIPsi - Artigos (Papers)

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