Plasma corticosterone levels in the rat following discrete-trial discrimination or a single extinction trial
Tóm tắt
Male Sprague-Dawley rats received either successive discrimination training or continuous reward in a straight alley with a 24-h intertriai interval. Plasma corticosterone levels were determined after moderate (18 trials) and extended (46 trials) acquisition in Experiment I and after 20 trials in Experiment II. Increases in plasma corticosterone levels following nonreward in the discrimination groups or in subjects previously given 45 continuous reward trials were not significant relative to two control groups. These results fail to support the proposal that the pituitary-adrenal system is sensitive to downward reinforcement shifts (frustration effects) under widely spaced trials.
Tài liệu tham khảo
Amsel, A. The role of frustrative nonreward in non-continuous reward situations. Psychological Bulletin, 1958, 55, 102–119.
Amsel, A. Frustrative nonreward in partial reinforcement and discrimination learning: Some recent history and a theoretical extension. Psychological Review, 1962, 69, 306–328.
Amsel, A. Partial reinforcement effects on vigor and persistence. In K. W. Spence & J. T. Spence (Eds.), The psychology of learning and motivation (Vol. 1). New York: Academic Press, 1967.
Amsel, A., & Ward, J. S. Frustration and persistence: Resistance to discrimination following prior experience with the discriminanda. Psychological Monographs, 1965, 79, 1–41.
Bronson, F. H., & Eleftheriou, B. E. Relative effects of fighting on bound and unbound corticosterone in mice. Proceedings of the Society of Experimental Biology and Medicine, 1965, 118, 146–149.
Coover, G. D., Goldman, L., & Levine, S. Plasma corticosterone increases produced by extinction of operant behavior in rats. Physiology and Behavior, 1971, 6, 261–263.
Davidson, J. M., Jones, L. E., & Levine, S. Feedback regulation of adrenocorticotropin secretion in “basal” and “stress” conditions: acute and chronic effects of intrahypothalamic corticoid implantation. Endocrinology, 1968, 82, 655–663.
De Wied, D. Opposite effects of ACTH and glucocorticosteroids on extinction of conditioned avoidance behavior. In: L. Martini, F. Franschini, & M. Motta (Eds.), Hormonal Steroids. The Hague: Mouton, 1967.
Garrud, p., Gray, J. A., & De Wied, D. Pituitary-adrenal hormones and extinction of rewarded behavior in the rat. Physiology and Behavior, 1974, 12, 109–119.
Goldman, L., Coover, G. D., & Levine, S. Bidirectional effects of reinforcement shifts on pituitary adrenal activity. Physiology and Behavior, 1973, 10, 209–214.
Gray, J. A. Effect of ACTH on extinction of rewarded behavior is blocked by previous administration of ACTH. Nature (London), 1971, 229, 52–54.
Guth, S., Levine, S., & Seward, J. P. Appetitive acquisition and extinction with exogenous ACTH. Physiology and Behavior, 1971, 7, 195–200.
Hennessy, J. W., Cohen, M. E., & Rosen, A. J. Adrenocortical influences upon the extinction of an appetitive runway response. Physiology and Behavior, 1973, 11, 767–770.
Johnson, J. T., & Levine, S. Influence of water deprivation on adrenocortical rhythms. Neuroendocrinology, 1973, 11, 268–273.
Krieger, D. T. Food and water restriction shifts corticosterone, temperature, activity and brain amine periodicity. Endocrinology, 1974, 95, 1195–1201.
Levine, S. Hormones and conditioning. In W. J. Arnold (Ed.), Nebraska Symposium on Motivation. Lincoln, Nebraska: University of Nebraska Press, 1968.
Levine, S., Goldman, L., & Coover, G. D. Expectancy and the pituitary-adrenal system. In Physiology, emotion, and psychosomatic illness. Amsterdam: Elsevier, 1972.
Miller, R. E., & Caul, W. F. Effect of adrenocorticotropic hormone on appetitive discrimination learning in the rat. Physiology and Behavior, 1973, 10, 141–143.
Moncloa, F., Peron, F. G., & Dorfman, R. I. The fluorimetric determination of corticosterone in rat adrenal tissue and plasma: Effect of administration of ACTH subcutaneously. Journal of Endocrinology, 1959, 65, 717–724.