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- Title
INFERENCE BASED ON TRANSITIVE RELATION IN TREE SHREWS (TUPAIA BELANGERI) AND RATS (RATTUS NORVEGICUS) ON A SPATIAL DISCRIMINATION TASK.
- Authors
Takahashi, Makoto; Ushitani, Tomokazu; Fujita, Kazuo
- Abstract
Six tree shrews and 8 rats were tested for their ability to infer transitively in a spatial discrimination task. The apparatus was a semicircular radial-arm maze with 8 arms labeled A through H. In Experiment 1, the animals were first trained in sequence on 4 discriminations to enter 1 of the paired adjacent arms, AB, BC, CD, and DE, with right (or left, for half the animals) symbols signifying positive options; then they were tested with the previously unused pair of arms, FH. All tree shrews and 4 rats transitively chose H (or F for half the animals). In Experiment 2, all tree shrews and 5 rats transitively chose H (or F) on 3-option tests of FGH. The results suggest that these animals used transitive relation in solving novel problems.
- Subjects
INFERENCE (Logic); SPATIAL ability; ANIMAL psychology testing; SHREWS; LABORATORY rats
- Publication
Psychological Record, 2008, Vol 58, Issue 2, p215
- ISSN
0033-2933
- Publication type
Article
- DOI
10.1007/BF03395612