{"pk":5701,"title":"Simultaneous Pattern Discriminations by Pigeons Reveal Absence of Mirror-Image and Left-Right Confusions","subtitle":null,"abstract":"In a simultaneous discrimination task, pigeons were first trained with two patterns: one rewarding (A+) and the other unrewarding (B-) that contained the same components (the symbols: c, d, ■ and <) but displayed in a different spatial layout. They were then tested for their choices of patterns: (1) A+ vs. its mirror image (MI); (2) A+ vs. its left-right reversal (LR); (3) MI vs. other layouts (OL) of the symbols; (4) LR vs. OL. In the first two conditions, A+ was chosen over its MI and LR reversal (i.e., no MI or LR confusions were found). In the last two conditions, MI and LR were not chosen over the OL, that is, they were not treated as substitutes for the A+. On the contrary, the OL stimuli were chosen over the transformations of A+. In all cases, the discriminations revealed a failure to confuse the A+ with its transformations, as predicted from work showing that the position of pattern components is important in pattern recognition.","language":"en","license":{"name":"Creative Commons Attribution 4.0","short_name":"CC BY 4.0","text":"Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.\r\n\r\nNo additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.","url":"https://creativecommons.org/licenses/by/4.0"},"keywords":[{"word":"International Journal of Comparative Psychology"},{"word":"Behavior"},{"word":"Behaviour"},{"word":"learning"},{"word":"Behavioral Taxonomy"},{"word":"cognition"},{"word":"Cognitive Processes"},{"word":"Intelligence"},{"word":"Choice"},{"word":"Conditioning"},{"word":"Communication"},{"word":"Simultaneous Discrimination"},{"word":"Pattern"},{"word":"Mirror"},{"word":"Pigeon"}],"section":"Research Article","is_remote":true,"remote_url":"https://escholarship.org/uc/item/1gj3b50w","frozenauthors":[{"first_name":"France","middle_name":"","last_name":"Landry","name_suffix":"","institution":"University of Ottawa, Canada","department":"None"},{"first_name":"Catherine","middle_name":"","last_name":"Plowright","name_suffix":"","institution":"University of Ottawa, Canada","department":"None"}],"date_submitted":"2009-05-05T03:00:00-04:00","date_accepted":"2009-05-05T03:00:00-04:00","date_published":"2002-12-31T03:00:00-05:00","render_galley":null,"galleys":[{"label":"","type":"","path":"https://journalpub.escholarship.org/uclapsych_ijcp/article/5701/galley/3456/download/"}]}