McCarthy, D Measures of response bias at minimum-detectable luminance levels in the pigeon. [electronic resource] - Journal of the experimental analysis of behavior Jan 1983 - 87-106 p. digital Publication Type: Journal Article ISSN: 0022-5002 Standard No.: 10.1901/jeab.1983.39-87 doi Subjects--Topical Terms: AnimalsColumbidaeLightPhotic StimulationReinforcement ScheduleSensory ThresholdsVisual Perception