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Updated: Jul 13, 2026

A Method for Investigating Change Blindness in Pigeons (Columba Livia)
Published on: September 7, 2018
The role of video coherence on object-based motion discriminations by pigeons
Robert G Cook1, Shelley Roberts
1Department of Psychology, Tufts University, Medford, MA 02155, USA. robert.cook@tufts.edu
Abstract:
Two experiments examined the effects of video coherence on the discrimination of relative motion by pigeons using a go/no-go procedure. Pigeons were trained to discriminate video stimuli in which the camera's perspective went either "around" or "through" the interior opening of 2 approaching objects. Experiment 1 used a within-groups design and Experiment 2 used a between-groups design to examine how sequencing these videos in a coherent smooth forward order versus a randomly scrambled order influenced learning. Discrimination learning was significantly faster with the coherent sequences. It is suggested that the pigeon visual system integrates 3-dimensional motion signals across space and time to produce a stable, object-based, perceptual world.
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