Seeing things from a different angle: the pigeon's recognition of single geons rotated in depth.
In 2 experiments involving computer-rendered versions of single shapes or "geons," the extent to which depth rotation affects the visual discrimination performance of pigeons in both go/no-go and forced-choice tasks was documented. The pigeons were able to recognize geons at most rotations in depth; however, the pigeons' recognition performance was better at the training view than at most other views. Aspects of these results are both consistent with and problematic for object-centered and viewer-centered theories of object recognition.
Peissig
J J
JJ
Department of Psychology, University of Iowa, Iowa City 52242-1407, USA. jessie-peissig@uiowa.edu
Young
M E
ME
Wasserman
E A
EA
Biederman
I
I
D000818:Animals; D010856:Columbidae / Q000502:physiology*; D003867:Depth Perception / Q000502:physiology*; D004193:Discrimination Learning / Q000502:physiology; D011897:Random Allocation; D012399:Rotation; D014794:Visual Fields / Q000502:physiology*; D014796:Visual Perception / Q000502:physiology*