Models for the pressing rate response of rats and pogeons on a certain class of variable interval schedules of behavior.
D000818:Animals; D001522:Behavior, Animal; D001921:Brain / Q000502:physiology; D010856:Columbidae; D007858:Learning; D008960:Models, Psychological; D011336:Probability; D051381:Rats; D012054:Reinforcement, Psychology