MYERS, A K Onset vs. termination of stimulus energy as the CS in avoidance conditioning and pseudoconditioning. [electronic resource] - Journal of comparative and physiological psychology Feb 1960 - 72-8 p. digital Publication Type: Journal Article ISSN: 0021-9940 Standard No.: 10.1037/h0039133 doi Subjects--Topical Terms: Conditioning, OperantHumansLearning