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Emergent Identity Matching After Successive Matching Training Ii: Reflexivity Or Transitivity?, Peter J. Urcuioli, Melissa Swisher
Emergent Identity Matching After Successive Matching Training Ii: Reflexivity Or Transitivity?, Peter J. Urcuioli, Melissa Swisher
Department of Psychological Sciences Faculty Publications
Three experiments evaluated whether the apparent reflexivity effect reported by Sweeney and Urcuioli (2010) for pigeons might, in fact, be transitivity. In Experiment 1, pigeons learned symmetrically reinforced hue-form (A-B) and form-hue (B-A) successive matching. Those also trained on form-form (B-B) matching responded more to hue comparisons that matched their preceding samples on subsequent hue-hue (A-A) probe trials. By contrast, most pigeons trained on just A-B and B-A matching did not show this effect; but some did – a finding consistent with transitivity. Experiment 2 showed that the latter pigeons also responded more to form comparisons that matched their preceding …
A Replication And Extension Of The Anti-Symmetry Effect In Pigeons, Peter J. Urcuioli, Melissa Swisher
A Replication And Extension Of The Anti-Symmetry Effect In Pigeons, Peter J. Urcuioli, Melissa Swisher
Department of Psychological Sciences Faculty Publications
Pigeons trained on successive AB symbolic matching show emergent BA anti-symmetry if they are also trained on successive AA oddity and BB identity (Urcuioli, 2008, Experiment 4). In other words, when tested on BA probe trials following training, they respond more to the comparisons on the reverse of the non-reinforced AB baseline trials than on the reverse of the reinforced AB baseline trials (the opposite of an associative symmetry pattern). The present experiment replicated this finding. In addition, it showed that anti-symmetry also emerged after baseline training on successive AB symbolic matching, AA identity, and BB oddity, consistent with the …