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Potentiation and overshadowing between landmarks and environmental geometric cues

Horne, Murray R. and Pearce, John Martindale 2011. Potentiation and overshadowing between landmarks and environmental geometric cues. Learning & Behavior 39 (4) , pp. 371-382. 10.3758/s13420-011-0032-8

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Rats were required in three experiments to find one of two submerged platforms that were situated in the same pair of diagonally opposite corners of a rectangular grey swimming pool. The experimental groups were trained with landmarks, comprising A4 cards attached to the walls, located in the corners containing the platforms. For the control groups, the landmarks were situated in the corners containing the platforms for half of the trials, and in the other corners for the remaining trials. Learning about the positions of the platforms with reference to the shape of the pool was overshadowed in the experimental groups when the landmarks were white, and enhanced when the landmarks were black. A fourth experiment assessed whether geometric cues influenced the control acquired by the landmarks. As in the previous experiments, the presence of the geometric cues overshadowed learning about the landmarks when they were white, but enhanced learning when the landmarks were black.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Psychology
Subjects: B Philosophy. Psychology. Religion > BF Psychology
Uncontrolled Keywords: Overshadowing – Potentiation – Landmarks – Geometry
Publisher: Psychonomic Society
ISSN: 1543-4494
Last Modified: 04 Jun 2017 04:01

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