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ERIC Number: EJ906129
Record Type: Journal
Publication Date: 2010-Nov
Pages: 16
Abstractor: As Provided
Reference Count: 65
ISSN: ISSN-0022-5002
Reflexivity in Pigeons
Sweeney, Mary M.; Urcuioli, Peter J.
Journal of the Experimental Analysis of Behavior, v94 n3 p267-282 Nov 2010
A recent theory of pigeons' equivalence-class formation (Urcuioli, 2008) predicts that reflexivity, an untrained ability to match a stimulus to itself, should be observed after training on two "mirror-image" symbolic successive matching tasks plus identity successive matching using some of the symbolic matching stimuli. One group of pigeons was trained in this fashion; a second group was trained similarly but with successive oddity (rather than identity). Subsequently, comparison-response rates on novel matching versus mismatching sequences with the remaining symbolic matching stimuli were measured on nonreinforced probe trials. Higher rates were observed on matching than on mismatching probes in the former group. The opposite effect--higher rates on mismatching than matching probes--was mostly absent in the latter group, despite being predicted by the theory. Nevertheless, the ostensible reflexivity effect observed in former group may be the first time this phenomenon has been demonstrated in any animal. (Contains 2 tables, 6 figures and 2 footnotes.)
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A