The bisection of a spatial interval by the pigeon.
Pigeons pecked two response keys to move a white dot until it was equidistant from two other dots on a screen. Continuous records of dot position showed the effects of reinforcement and stimulus parameters upon the accuracy with which the dot was positioned. The method may prove useful for studying the perception of distance in non-human organisms.
D000818:Animals; D010856:Columbidae; D004215:Distance Perception; D005108:Extinction, Psychological; D008722:Methods; D012055:Reinforcement Schedule; D012054:Reinforcement, Psychology; D013997:Time Factors