title: Abstract numerical discrimination learning in rats.
abstract: In this study, we examined rats' discrimination learning of the numerical ordering positions of objects. In Experiments 1 and 2, five out of seven rats successfully learned to respond to the third of six identical objects in a row and showed reliable transfer of this discrimination to novel stimuli after being trained with three different training stimuli. In Experiment 3, the three rats from Experiment 2 continued to be trained to respond to the third object in an object array, which included an odd object that needed to be excluded when identifying the target third object. All three rats acquired this selective-counting task of specific stimuli, and two rats showed reliable transfer of this selective-counting performance to test sets of novel stimuli. In Experiment 4, the three rats from Experiment 3 quickly learned to respond to the third stimulus in object rows consisting of either six identical or six different objects. These results offer strong evidence for abstract numerical discrimination learning in rats.
authors.affiliation: Graduate School of Socio-Environmental Studies, Kanazawa University, Kakuma, 920-1192, Kanazawa, Ishikawa, Japan. tohruta@staff.kanazawa-u.ac.jp.
authors.forename: Tohru
authors.initials: T
authors.lastname: Taniuchi
authors.affiliation: Faculty of Letters, Kanazawa University, Kakuma, Kanazawa, Ishikawa, Japan.
authors.forename: Junko
authors.initials: J
authors.lastname: Sugihara
authors.affiliation: Faculty of Letters, Kanazawa University, Kakuma, Kanazawa, Ishikawa, Japan.
authors.forename: Mariko
authors.initials: M
authors.lastname: Wakashima
authors.affiliation: Graduate School of Socio-Environmental Studies, Kanazawa University, Kakuma, 920-1192, Kanazawa, Ishikawa, Japan.
authors.forename: Makiko
authors.initials: M
authors.lastname: Kamijo
mesh_terms: D000818:Animals; D003213:Conditioning, Psychological; D004193:Discrimination Learning; D004192:Discrimination, Psychological; D007858:Learning; D051381:Rats; D014163:Transfer, Psychology
keywords: Absolute ordering; Discrimination; Numerical processing; Rat; Selective counting
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