SCHRIER, A M Effect of amount of incentive on discrimination learning by monkeys. [electronic resource] - Journal of comparative and physiological psychology Apr 1956 - 117-22 p. digital Publication Type: Journal Article ISSN: 0021-9940 Standard No.: 10.1037/h0041746 doi Subjects--Topical Terms: AnimalsDiscrimination LearningHaplorhiniLearningMotivation