National Repository of Grey Literature 1 records found  Search took 0.00 seconds. 
How do birds categorize real and abstract objects?
NÁCAR, David
This thesis reviews the experiments about the visual categorization in birds, especially pigeons, based on the operant conditioning and employed both real and abstract objects. These experiments are focused on the simple object recognition, complex concept formation and the picture-object recognition. This thesis tries to find the reasons of the inconsistences among conclusions of these experiments

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