Pennes, E S Effects of partial reinforcement on discrimination learning and subsequent reversal or extinction. [electronic resource] - Journal of experimental psychology Jun 1967 - 219-24 p. digital Publication Type: Journal Article ISSN: 0022-1015 Standard No.: 10.1037/h0024631 doi Subjects--Topical Terms: AnimalsConditioning, PsychologicalDiscrimination LearningExtinction, PsychologicalMaleRatsReinforcement, PsychologyReversal Learning