The role of video coherence on object-based motion discriminations by pigeons.
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.
Cook
Robert G
RG
Department of Psychology, Tufts University, Medford, MA 02155, USA. robert.cook@tufts.edu
Roberts
Shelley
S
D000818:Animals; D010856:Columbidae; D003198:Computer Simulation; D003216:Conditioning, Operant; D003867:Depth Perception; D004193:Discrimination Learning; D009039:Motion Perception; D009949:Orientation; D010364:Pattern Recognition, Visual; D014163:Transfer, Psychology; D014741:Video Recording