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Swaddle, John P.; Johnson, Charles W. – Journal of the Experimental Analysis of Behavior, 2007
Small deviations from bilateral symmetry (fluctuating asymmetries) are cues to fitness differences in some animals. Therefore, researchers have considered whether animals use these small asymmetries as visual cues to determine appropriate behavioral responses (e.g., mate preferences). However, there have been few systematic studies of animals'…
Descriptors: Animals, Animal Behavior, Cues, Visual Discrimination
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Gibson, Brett M.; Wasserman, Edward A.; Cook, Robert G. – Learning and Motivation, 2006
In Experiment 1, we trained four pigeons to concurrently discriminate displays of 16 same icons (16S) from displays of 16 different icons (16D) as well as between displays of same icons (16S) from displays that contained 15 same icons and one different icon (15S:1D). The birds rapidly learned to discriminate 16S vs. 16D displays, but they failed…
Descriptors: Visual Discrimination, Animal Behavior, Visual Learning, Learning Processes