DinsmoorJ. A.A quantitative comparison of the discriminative and reinforcing functions of a stimulus. J. exp. Psychol., 1950, 40, 458–472.
2.
EstesW. K.Generalization of secondary reinforcement from the primary drive. J. comp. physiol. Psychol., 1949, 42, 286–295.
3.
RatnerS. C.Effect of extinction of dipper approaching on subsequent extinction of bar pressing and dipper approaching. J. comp. physiol. Psychol., in press.
